21681770

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{3719}}^1$

素因数の和:3790

約数の個数: 32

約数和(自身を含む): 43390080

約数和(自身を除く): 21708310

約数列:

[1, 2, 5, 10, 11, 22, 53, 55, 106, 110, 265, 530, 583, 1166, 2915, 3719, 5830, 7438, 18595, 37190, 40909, 81818, 197107, 204545, 394214, 409090, 985535, 1971070, 2168177, 4336354, 10840885, 21681770]

約数ペア:

[(1, 21681770), (2, 10840885), (5, 4336354), (10, 2168177), (11, 1971070), (22, 985535), (53, 409090), (55, 394214), (106, 204545), (110, 197107), (265, 81818), (530, 40909), (583, 37190), (1166, 18595), (2915, 7438), (3719, 5830)]