21135700

素因数分解:

$2^2\times 5^2\times {\mathrm{241}}^1\times {\mathrm{877}}^1$

素因数の和:1132

約数の個数: 36

約数和(自身を含む): 46107292

約数和(自身を除く): 24971592

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 241, 482, 877, 964, 1205, 1754, 2410, 3508, 4385, 4820, 6025, 8770, 12050, 17540, 21925, 24100, 43850, 87700, 211357, 422714, 845428, 1056785, 2113570, 4227140, 5283925, 10567850, 21135700]

約数ペア:

[(1, 21135700), (2, 10567850), (4, 5283925), (5, 4227140), (10, 2113570), (20, 1056785), (25, 845428), (50, 422714), (100, 211357), (241, 87700), (482, 43850), (877, 24100), (964, 21925), (1205, 17540), (1754, 12050), (2410, 8770), (3508, 6025), (4385, 4820)]