21143770

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{5857}}^1$

素因数の和:5902

約数の個数: 24

約数和(自身を含む): 40174164

約数和(自身を除く): 19030394

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 361, 722, 1805, 3610, 5857, 11714, 29285, 58570, 111283, 222566, 556415, 1112830, 2114377, 4228754, 10571885, 21143770]

約数ペア:

[(1, 21143770), (2, 10571885), (5, 4228754), (10, 2114377), (19, 1112830), (38, 556415), (95, 222566), (190, 111283), (361, 58570), (722, 29285), (1805, 11714), (3610, 5857)]