19561271

素因数分解:

${\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{227}}^1$

素因数の和:418

約数の個数: 16

約数和(自身を含む): 21521376

約数和(自身を除く): 1960105

約数列:

[1, 17, 37, 137, 227, 629, 2329, 3859, 5069, 8399, 31099, 86173, 142783, 528683, 1150663, 19561271]

約数ペア:

[(1, 19561271), (17, 1150663), (37, 528683), (137, 142783), (227, 86173), (629, 31099), (2329, 8399), (3859, 5069)]