21803208

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{233}}^1\times {\mathrm{557}}^1$

素因数の和:806

約数の個数: 64

約数和(自身を含む): 62674560

約数和(自身を除く): 40871352

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 233, 466, 557, 699, 932, 1114, 1398, 1631, 1671, 1864, 2228, 2796, 3262, 3342, 3899, 4456, 4893, 5592, 6524, 6684, 7798, 9786, 11697, 13048, 13368, 15596, 19572, 23394, 31192, 39144, 46788, 93576, 129781, 259562, 389343, 519124, 778686, 908467, 1038248, 1557372, 1816934, 2725401, 3114744, 3633868, 5450802, 7267736, 10901604, 21803208]

約数ペア:

[(1, 21803208), (2, 10901604), (3, 7267736), (4, 5450802), (6, 3633868), (7, 3114744), (8, 2725401), (12, 1816934), (14, 1557372), (21, 1038248), (24, 908467), (28, 778686), (42, 519124), (56, 389343), (84, 259562), (168, 129781), (233, 93576), (466, 46788), (557, 39144), (699, 31192), (932, 23394), (1114, 19572), (1398, 15596), (1631, 13368), (1671, 13048), (1864, 11697), (2228, 9786), (2796, 7798), (3262, 6684), (3342, 6524), (3899, 5592), (4456, 4893)]