21729526

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{179}}^1$

素因数の和:253

約数の個数: 64

約数和(自身を含む): 43545600

約数和(自身を除く): 21816074

約数列:

[1, 2, 7, 13, 14, 23, 26, 29, 46, 58, 91, 161, 179, 182, 203, 299, 322, 358, 377, 406, 598, 667, 754, 1253, 1334, 2093, 2327, 2506, 2639, 4117, 4186, 4654, 4669, 5191, 5278, 8234, 8671, 9338, 10382, 16289, 17342, 28819, 32578, 36337, 53521, 57638, 60697, 67483, 72674, 107042, 119393, 121394, 134966, 238786, 374647, 472381, 749294, 835751, 944762, 1552109, 1671502, 3104218, 10864763, 21729526]

約数ペア:

[(1, 21729526), (2, 10864763), (7, 3104218), (13, 1671502), (14, 1552109), (23, 944762), (26, 835751), (29, 749294), (46, 472381), (58, 374647), (91, 238786), (161, 134966), (179, 121394), (182, 119393), (203, 107042), (299, 72674), (322, 67483), (358, 60697), (377, 57638), (406, 53521), (598, 36337), (667, 32578), (754, 28819), (1253, 17342), (1334, 16289), (2093, 10382), (2327, 9338), (2506, 8671), (2639, 8234), (4117, 5278), (4186, 5191), (4654, 4669)]