1978272191

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{108571}}^1$

素因数の和:108734

約数の個数: 16

約数和(自身を含む): 2397269760

約数和(自身を除く): 418997569

約数列:

[1, 7, 19, 133, 137, 959, 2603, 18221, 108571, 759997, 2062849, 14439943, 14874227, 104119589, 282610313, 1978272191]

約数ペア:

[(1, 1978272191), (7, 282610313), (19, 104119589), (133, 14874227), (137, 14439943), (959, 2062849), (2603, 759997), (18221, 108571)]