21000918144

素因数分解:

$2^7\times 3^1\times {\mathrm{521}}^1\times {\mathrm{104971}}^1$

素因数の和:105509

約数の個数: 64

約数和(自身を含む): 55891291680

約数和(自身を除く): 34890373536

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 192, 384, 521, 1042, 1563, 2084, 3126, 4168, 6252, 8336, 12504, 16672, 25008, 33344, 50016, 66688, 100032, 104971, 200064, 209942, 314913, 419884, 629826, 839768, 1259652, 1679536, 2519304, 3359072, 5038608, 6718144, 10077216, 13436288, 20154432, 40308864, 54689891, 109379782, 164069673, 218759564, 328139346, 437519128, 656278692, 875038256, 1312557384, 1750076512, 2625114768, 3500153024, 5250229536, 7000306048, 10500459072, 21000918144]

約数ペア:

[(1, 21000918144), (2, 10500459072), (3, 7000306048), (4, 5250229536), (6, 3500153024), (8, 2625114768), (12, 1750076512), (16, 1312557384), (24, 875038256), (32, 656278692), (48, 437519128), (64, 328139346), (96, 218759564), (128, 164069673), (192, 109379782), (384, 54689891), (521, 40308864), (1042, 20154432), (1563, 13436288), (2084, 10077216), (3126, 6718144), (4168, 5038608), (6252, 3359072), (8336, 2519304), (12504, 1679536), (16672, 1259652), (25008, 839768), (33344, 629826), (50016, 419884), (66688, 314913), (100032, 209942), (104971, 200064)]