21685320

素因数分解:

$2^3\times 3^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1$

素因数の和:146

約数の個数: 192

約数和(自身を含む): 77051520

約数和(自身を除く): 55366200

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 27, 30, 36, 40, 45, 46, 54, 60, 69, 72, 81, 90, 92, 97, 108, 115, 120, 135, 138, 162, 180, 184, 194, 207, 216, 230, 243, 270, 276, 291, 324, 345, 360, 388, 405, 414, 460, 485, 486, 540, 552, 582, 621, 648, 690, 776, 810, 828, 873, 920, 970, 972, 1035, 1080, 1164, 1215, 1242, 1380, 1455, 1620, 1656, 1746, 1863, 1940, 1944, 2070, 2231, 2328, 2430, 2484, 2619, 2760, 2910, 3105, 3240, 3492, 3726, 3880, 4140, 4365, 4462, 4860, 4968, 5238, 5589, 5820, 6210, 6693, 6984, 7452, 7857, 8280, 8730, 8924, 9315, 9720, 10476, 11155, 11178, 11640, 12420, 13095, 13386, 14904, 15714, 17460, 17848, 18630, 20079, 20952, 22310, 22356, 23571, 24840, 26190, 26772, 27945, 31428, 33465, 34920, 37260, 39285, 40158, 44620, 44712, 47142, 52380, 53544, 55890, 60237, 62856, 66930, 74520, 78570, 80316, 89240, 94284, 100395, 104760, 111780, 117855, 120474, 133860, 157140, 160632, 180711, 188568, 200790, 223560, 235710, 240948, 267720, 301185, 314280, 361422, 401580, 471420, 481896, 542133, 602370, 722844, 803160, 903555, 942840, 1084266, 1204740, 1445688, 1807110, 2168532, 2409480, 2710665, 3614220, 4337064, 5421330, 7228440, 10842660, 21685320]

約数ペア:

[(1, 21685320), (2, 10842660), (3, 7228440), (4, 5421330), (5, 4337064), (6, 3614220), (8, 2710665), (9, 2409480), (10, 2168532), (12, 1807110), (15, 1445688), (18, 1204740), (20, 1084266), (23, 942840), (24, 903555), (27, 803160), (30, 722844), (36, 602370), (40, 542133), (45, 481896), (46, 471420), (54, 401580), (60, 361422), (69, 314280), (72, 301185), (81, 267720), (90, 240948), (92, 235710), (97, 223560), (108, 200790), (115, 188568), (120, 180711), (135, 160632), (138, 157140), (162, 133860), (180, 120474), (184, 117855), (194, 111780), (207, 104760), (216, 100395), (230, 94284), (243, 89240), (270, 80316), (276, 78570), (291, 74520), (324, 66930), (345, 62856), (360, 60237), (388, 55890), (405, 53544), (414, 52380), (460, 47142), (485, 44712), (486, 44620), (540, 40158), (552, 39285), (582, 37260), (621, 34920), (648, 33465), (690, 31428), (776, 27945), (810, 26772), (828, 26190), (873, 24840), (920, 23571), (970, 22356), (972, 22310), (1035, 20952), (1080, 20079), (1164, 18630), (1215, 17848), (1242, 17460), (1380, 15714), (1455, 14904), (1620, 13386), (1656, 13095), (1746, 12420), (1863, 11640), (1940, 11178), (1944, 11155), (2070, 10476), (2231, 9720), (2328, 9315), (2430, 8924), (2484, 8730), (2619, 8280), (2760, 7857), (2910, 7452), (3105, 6984), (3240, 6693), (3492, 6210), (3726, 5820), (3880, 5589), (4140, 5238), (4365, 4968), (4462, 4860)]