19091312

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{27749}}^1$

素因数の和:27800

約数の個数: 20

約数和(自身を含む): 37851000

約数和(自身を除く): 18759688

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 27749, 55498, 110996, 221992, 443984, 1193207, 2386414, 4772828, 9545656, 19091312]

約数ペア:

[(1, 19091312), (2, 9545656), (4, 4772828), (8, 2386414), (16, 1193207), (43, 443984), (86, 221992), (172, 110996), (344, 55498), (688, 27749)]