21994331397140

素因数分解:

$2^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{4279052801}}^1$

素因数の和:4279053067

約数の個数: 24

約数和(自身を含む): 46367816162472

約数和(自身を除く): 24373484765332

約数列:

[1, 2, 4, 5, 10, 20, 257, 514, 1028, 1285, 2570, 5140, 4279052801, 8558105602, 17116211204, 21395264005, 42790528010, 85581056020, 1099716569857, 2199433139714, 4398866279428, 5498582849285, 10997165698570, 21994331397140]

約数ペア:

[(1, 21994331397140), (2, 10997165698570), (4, 5498582849285), (5, 4398866279428), (10, 2199433139714), (20, 1099716569857), (257, 85581056020), (514, 42790528010), (1028, 21395264005), (1285, 17116211204), (2570, 8558105602), (5140, 4279052801)]