19752178

素因数分解:

$2^1\times {\mathrm{139}}^1\times {\mathrm{227}}^1\times {\mathrm{313}}^1$

素因数の和:681

約数の個数: 16

約数和(自身を含む): 30068640

約数和(自身を除く): 10316462

約数列:

[1, 2, 139, 227, 278, 313, 454, 626, 31553, 43507, 63106, 71051, 87014, 142102, 9876089, 19752178]

約数ペア:

[(1, 19752178), (2, 9876089), (139, 142102), (227, 87014), (278, 71051), (313, 63106), (454, 43507), (626, 31553)]