216868978

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{409}}^1\times {\mathrm{11527}}^1$

素因数の和:11961

約数の個数: 16

約数和(自身を含む): 340306560

約数和(自身を除く): 123437582

約数列:

[1, 2, 23, 46, 409, 818, 9407, 11527, 18814, 23054, 265121, 530242, 4714543, 9429086, 108434489, 216868978]

約数ペア:

[(1, 216868978), (2, 108434489), (23, 9429086), (46, 4714543), (409, 530242), (818, 265121), (9407, 23054), (11527, 18814)]