21000643248

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1160513}}^1$

素因数の和:1160566

約数の個数: 80

約数和(自身を含む): 60439569120

約数和(自身を除く): 39438925872

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 29, 39, 48, 52, 58, 78, 87, 104, 116, 156, 174, 208, 232, 312, 348, 377, 464, 624, 696, 754, 1131, 1392, 1508, 2262, 3016, 4524, 6032, 9048, 18096, 1160513, 2321026, 3481539, 4642052, 6963078, 9284104, 13926156, 15086669, 18568208, 27852312, 30173338, 33654877, 45260007, 55704624, 60346676, 67309754, 90520014, 100964631, 120693352, 134619508, 181040028, 201929262, 241386704, 269239016, 362080056, 403858524, 437513401, 538478032, 724160112, 807717048, 875026802, 1312540203, 1615434096, 1750053604, 2625080406, 3500107208, 5250160812, 7000214416, 10500321624, 21000643248]

約数ペア:

[(1, 21000643248), (2, 10500321624), (3, 7000214416), (4, 5250160812), (6, 3500107208), (8, 2625080406), (12, 1750053604), (13, 1615434096), (16, 1312540203), (24, 875026802), (26, 807717048), (29, 724160112), (39, 538478032), (48, 437513401), (52, 403858524), (58, 362080056), (78, 269239016), (87, 241386704), (104, 201929262), (116, 181040028), (156, 134619508), (174, 120693352), (208, 100964631), (232, 90520014), (312, 67309754), (348, 60346676), (377, 55704624), (464, 45260007), (624, 33654877), (696, 30173338), (754, 27852312), (1131, 18568208), (1392, 15086669), (1508, 13926156), (2262, 9284104), (3016, 6963078), (4524, 4642052), (6032, 3481539), (9048, 2321026), (18096, 1160513)]