21990362

素因数分解:

$2^1\times {\mathrm{59}}^1\times {\mathrm{157}}^1\times {\mathrm{1187}}^1$

素因数の和:1405

約数の個数: 16

約数和(自身を含む): 33786720

約数和(自身を除く): 11796358

約数列:

[1, 2, 59, 118, 157, 314, 1187, 2374, 9263, 18526, 70033, 140066, 186359, 372718, 10995181, 21990362]

約数ペア:

[(1, 21990362), (2, 10995181), (59, 372718), (118, 186359), (157, 140066), (314, 70033), (1187, 18526), (2374, 9263)]