18657204986

素因数分解:

$2^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{9727427}}^1$

素因数の和:9727573

約数の個数: 16

約数和(自身を含む): 32217241536

約数和(自身を除く): 13560036550

約数列:

[1, 2, 7, 14, 137, 274, 959, 1918, 9727427, 19454854, 68091989, 136183978, 1332657499, 2665314998, 9328602493, 18657204986]

約数ペア:

[(1, 18657204986), (2, 9328602493), (7, 2665314998), (14, 1332657499), (137, 136183978), (274, 68091989), (959, 19454854), (1918, 9727427)]