21809368

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{739}}^1$

素因数の和:800

約数の個数: 64

約数和(自身を含む): 51148800

約数和(自身を除く): 29339432

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 31, 34, 56, 62, 68, 119, 124, 136, 217, 238, 248, 434, 476, 527, 739, 868, 952, 1054, 1478, 1736, 2108, 2956, 3689, 4216, 5173, 5912, 7378, 10346, 12563, 14756, 20692, 22909, 25126, 29512, 41384, 45818, 50252, 87941, 91636, 100504, 160363, 175882, 183272, 320726, 351764, 389453, 641452, 703528, 778906, 1282904, 1557812, 2726171, 3115624, 5452342, 10904684, 21809368]

約数ペア:

[(1, 21809368), (2, 10904684), (4, 5452342), (7, 3115624), (8, 2726171), (14, 1557812), (17, 1282904), (28, 778906), (31, 703528), (34, 641452), (56, 389453), (62, 351764), (68, 320726), (119, 183272), (124, 175882), (136, 160363), (217, 100504), (238, 91636), (248, 87941), (434, 50252), (476, 45818), (527, 41384), (739, 29512), (868, 25126), (952, 22909), (1054, 20692), (1478, 14756), (1736, 12563), (2108, 10346), (2956, 7378), (3689, 5912), (4216, 5173)]