21410480

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1$

素因数の和:223

約数の個数: 160

約数和(自身を含む): 65245824

約数和(自身を除く): 43835344

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 17, 20, 26, 28, 34, 35, 40, 52, 56, 65, 68, 70, 80, 85, 91, 104, 112, 119, 130, 136, 140, 170, 173, 182, 208, 221, 238, 260, 272, 280, 340, 346, 364, 442, 455, 476, 520, 560, 595, 680, 692, 728, 865, 884, 910, 952, 1040, 1105, 1190, 1211, 1360, 1384, 1456, 1547, 1730, 1768, 1820, 1904, 2210, 2249, 2380, 2422, 2768, 2941, 3094, 3460, 3536, 3640, 4420, 4498, 4760, 4844, 5882, 6055, 6188, 6920, 7280, 7735, 8840, 8996, 9520, 9688, 11245, 11764, 12110, 12376, 13840, 14705, 15470, 15743, 17680, 17992, 19376, 20587, 22490, 23528, 24220, 24752, 29410, 30940, 31486, 35984, 38233, 41174, 44980, 47056, 48440, 58820, 61880, 62972, 76466, 78715, 82348, 89960, 96880, 102935, 117640, 123760, 125944, 152932, 157430, 164696, 179920, 191165, 205870, 235280, 251888, 267631, 305864, 314860, 329392, 382330, 411740, 535262, 611728, 629720, 764660, 823480, 1070524, 1259440, 1338155, 1529320, 1646960, 2141048, 2676310, 3058640, 4282096, 5352620, 10705240, 21410480]

約数ペア:

[(1, 21410480), (2, 10705240), (4, 5352620), (5, 4282096), (7, 3058640), (8, 2676310), (10, 2141048), (13, 1646960), (14, 1529320), (16, 1338155), (17, 1259440), (20, 1070524), (26, 823480), (28, 764660), (34, 629720), (35, 611728), (40, 535262), (52, 411740), (56, 382330), (65, 329392), (68, 314860), (70, 305864), (80, 267631), (85, 251888), (91, 235280), (104, 205870), (112, 191165), (119, 179920), (130, 164696), (136, 157430), (140, 152932), (170, 125944), (173, 123760), (182, 117640), (208, 102935), (221, 96880), (238, 89960), (260, 82348), (272, 78715), (280, 76466), (340, 62972), (346, 61880), (364, 58820), (442, 48440), (455, 47056), (476, 44980), (520, 41174), (560, 38233), (595, 35984), (680, 31486), (692, 30940), (728, 29410), (865, 24752), (884, 24220), (910, 23528), (952, 22490), (1040, 20587), (1105, 19376), (1190, 17992), (1211, 17680), (1360, 15743), (1384, 15470), (1456, 14705), (1547, 13840), (1730, 12376), (1768, 12110), (1820, 11764), (1904, 11245), (2210, 9688), (2249, 9520), (2380, 8996), (2422, 8840), (2768, 7735), (2941, 7280), (3094, 6920), (3460, 6188), (3536, 6055), (3640, 5882), (4420, 4844), (4498, 4760)]