21000996768

素因数分解:

$2^5\times 3^1\times {\mathrm{23}}^1\times {\mathrm{541}}^1\times {\mathrm{17581}}^1$

素因数の和:18158

約数の個数: 96

約数和(自身を含む): 57634077312

約数和(自身を除く): 36633080544

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 23, 24, 32, 46, 48, 69, 92, 96, 138, 184, 276, 368, 541, 552, 736, 1082, 1104, 1623, 2164, 2208, 3246, 4328, 6492, 8656, 12443, 12984, 17312, 17581, 24886, 25968, 35162, 37329, 49772, 51936, 52743, 70324, 74658, 99544, 105486, 140648, 149316, 199088, 210972, 281296, 298632, 398176, 404363, 421944, 562592, 597264, 808726, 843888, 1194528, 1213089, 1617452, 1687776, 2426178, 3234904, 4852356, 6469808, 9511321, 9704712, 12939616, 19022642, 19409424, 28533963, 38045284, 38818848, 57067926, 76090568, 114135852, 152181136, 218760383, 228271704, 304362272, 437520766, 456543408, 656281149, 875041532, 913086816, 1312562298, 1750083064, 2625124596, 3500166128, 5250249192, 7000332256, 10500498384, 21000996768]

約数ペア:

[(1, 21000996768), (2, 10500498384), (3, 7000332256), (4, 5250249192), (6, 3500166128), (8, 2625124596), (12, 1750083064), (16, 1312562298), (23, 913086816), (24, 875041532), (32, 656281149), (46, 456543408), (48, 437520766), (69, 304362272), (92, 228271704), (96, 218760383), (138, 152181136), (184, 114135852), (276, 76090568), (368, 57067926), (541, 38818848), (552, 38045284), (736, 28533963), (1082, 19409424), (1104, 19022642), (1623, 12939616), (2164, 9704712), (2208, 9511321), (3246, 6469808), (4328, 4852356), (6492, 3234904), (8656, 2426178), (12443, 1687776), (12984, 1617452), (17312, 1213089), (17581, 1194528), (24886, 843888), (25968, 808726), (35162, 597264), (37329, 562592), (49772, 421944), (51936, 404363), (52743, 398176), (70324, 298632), (74658, 281296), (99544, 210972), (105486, 199088), (140648, 149316)]