21997416

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{1031}}^1$

素因数の和:1174

約数の個数: 64

約数和(自身を含む): 63406080

約数和(自身を除く): 41408664

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 127, 168, 254, 381, 508, 762, 889, 1016, 1031, 1524, 1778, 2062, 2667, 3048, 3093, 3556, 4124, 5334, 6186, 7112, 7217, 8248, 10668, 12372, 14434, 21336, 21651, 24744, 28868, 43302, 57736, 86604, 130937, 173208, 261874, 392811, 523748, 785622, 916559, 1047496, 1571244, 1833118, 2749677, 3142488, 3666236, 5499354, 7332472, 10998708, 21997416]

約数ペア:

[(1, 21997416), (2, 10998708), (3, 7332472), (4, 5499354), (6, 3666236), (7, 3142488), (8, 2749677), (12, 1833118), (14, 1571244), (21, 1047496), (24, 916559), (28, 785622), (42, 523748), (56, 392811), (84, 261874), (127, 173208), (168, 130937), (254, 86604), (381, 57736), (508, 43302), (762, 28868), (889, 24744), (1016, 21651), (1031, 21336), (1524, 14434), (1778, 12372), (2062, 10668), (2667, 8248), (3048, 7217), (3093, 7112), (3556, 6186), (4124, 5334)]