21399734

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{547}}^1\times {\mathrm{631}}^1$

素因数の和:1211

約数の個数: 16

約数和(自身を含む): 33248256

約数和(自身を除く): 11848522

約数列:

[1, 2, 31, 62, 547, 631, 1094, 1262, 16957, 19561, 33914, 39122, 345157, 690314, 10699867, 21399734]

約数ペア:

[(1, 21399734), (2, 10699867), (31, 690314), (62, 345157), (547, 39122), (631, 33914), (1094, 19561), (1262, 16957)]