21795700

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{12821}}^1$

素因数の和:12852

約数の個数: 36

約数和(自身を含む): 50082732

約数和(自身を除く): 28287032

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 170, 340, 425, 850, 1700, 12821, 25642, 51284, 64105, 128210, 217957, 256420, 320525, 435914, 641050, 871828, 1089785, 1282100, 2179570, 4359140, 5448925, 10897850, 21795700]

約数ペア:

[(1, 21795700), (2, 10897850), (4, 5448925), (5, 4359140), (10, 2179570), (17, 1282100), (20, 1089785), (25, 871828), (34, 641050), (50, 435914), (68, 320525), (85, 256420), (100, 217957), (170, 128210), (340, 64105), (425, 51284), (850, 25642), (1700, 12821)]