217156961

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{619}}^1\times {\mathrm{2179}}^1$

素因数の和:2828

約数の個数: 16

約数和(自身を含む): 259507200

約数和(自身を除く): 42350239

約数列:

[1, 7, 23, 161, 619, 2179, 4333, 14237, 15253, 50117, 99659, 350819, 1348801, 9441607, 31022423, 217156961]

約数ペア:

[(1, 217156961), (7, 31022423), (23, 9441607), (161, 1348801), (619, 350819), (2179, 99659), (4333, 50117), (14237, 15253)]