19425968

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{71419}}^1$

素因数の和:71444

約数の個数: 20

約数和(自身を含む): 39852360

約数和(自身を除く): 20426392

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 71419, 142838, 285676, 571352, 1142704, 1214123, 2428246, 4856492, 9712984, 19425968]

約数ペア:

[(1, 19425968), (2, 9712984), (4, 4856492), (8, 2428246), (16, 1214123), (17, 1142704), (34, 571352), (68, 285676), (136, 142838), (272, 71419)]