19889710

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{86477}}^1$

素因数の和:86507

約数の個数: 16

約数和(自身を含む): 37358496

約数和(自身を除く): 17468786

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 86477, 172954, 432385, 864770, 1988971, 3977942, 9944855, 19889710]

約数ペア:

[(1, 19889710), (2, 9944855), (5, 3977942), (10, 1988971), (23, 864770), (46, 432385), (115, 172954), (230, 86477)]