21041140

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{6701}}^1$

素因数の和:6867

約数の個数: 24

約数和(自身を含む): 44474472

約数和(自身を除く): 23433332

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 6701, 13402, 26804, 33505, 67010, 134020, 1052057, 2104114, 4208228, 5260285, 10520570, 21041140]

約数ペア:

[(1, 21041140), (2, 10520570), (4, 5260285), (5, 4208228), (10, 2104114), (20, 1052057), (157, 134020), (314, 67010), (628, 33505), (785, 26804), (1570, 13402), (3140, 6701)]