20979972

素因数分解:

$2^2\times 3^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{293}}^1$

素因数の和:339

約数の個数: 120

約数和(自身を含む): 62752536

約数和(自身を除く): 41772564

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 17, 18, 26, 27, 34, 36, 39, 51, 52, 54, 68, 78, 81, 102, 108, 117, 153, 156, 162, 204, 221, 234, 293, 306, 324, 351, 442, 459, 468, 586, 612, 663, 702, 879, 884, 918, 1053, 1172, 1326, 1377, 1404, 1758, 1836, 1989, 2106, 2637, 2652, 2754, 3516, 3809, 3978, 4212, 4981, 5274, 5508, 5967, 7618, 7911, 7956, 9962, 10548, 11427, 11934, 14943, 15236, 15822, 17901, 19924, 22854, 23733, 23868, 29886, 31644, 34281, 35802, 44829, 45708, 47466, 59772, 64753, 68562, 71604, 89658, 94932, 102843, 129506, 134487, 137124, 179316, 194259, 205686, 259012, 268974, 308529, 388518, 403461, 411372, 537948, 582777, 617058, 777036, 806922, 1165554, 1234116, 1613844, 1748331, 2331108, 3496662, 5244993, 6993324, 10489986, 20979972]

約数ペア:

[(1, 20979972), (2, 10489986), (3, 6993324), (4, 5244993), (6, 3496662), (9, 2331108), (12, 1748331), (13, 1613844), (17, 1234116), (18, 1165554), (26, 806922), (27, 777036), (34, 617058), (36, 582777), (39, 537948), (51, 411372), (52, 403461), (54, 388518), (68, 308529), (78, 268974), (81, 259012), (102, 205686), (108, 194259), (117, 179316), (153, 137124), (156, 134487), (162, 129506), (204, 102843), (221, 94932), (234, 89658), (293, 71604), (306, 68562), (324, 64753), (351, 59772), (442, 47466), (459, 45708), (468, 44829), (586, 35802), (612, 34281), (663, 31644), (702, 29886), (879, 23868), (884, 23733), (918, 22854), (1053, 19924), (1172, 17901), (1326, 15822), (1377, 15236), (1404, 14943), (1758, 11934), (1836, 11427), (1989, 10548), (2106, 9962), (2637, 7956), (2652, 7911), (2754, 7618), (3516, 5967), (3809, 5508), (3978, 5274), (4212, 4981)]