19968848

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{65687}}^1$

素因数の和:65714

約数の個数: 20

約数和(自身を含む): 40726560

約数和(自身を除く): 20757712

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 65687, 131374, 262748, 525496, 1050992, 1248053, 2496106, 4992212, 9984424, 19968848]

約数ペア:

[(1, 19968848), (2, 9984424), (4, 4992212), (8, 2496106), (16, 1248053), (19, 1050992), (38, 525496), (76, 262748), (152, 131374), (304, 65687)]