20581408

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{33851}}^1$

素因数の和:33880

約数の個数: 24

約数和(自身を含む): 42653520

約数和(自身を除く): 22072112

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 152, 304, 608, 33851, 67702, 135404, 270808, 541616, 643169, 1083232, 1286338, 2572676, 5145352, 10290704, 20581408]

約数ペア:

[(1, 20581408), (2, 10290704), (4, 5145352), (8, 2572676), (16, 1286338), (19, 1083232), (32, 643169), (38, 541616), (76, 270808), (152, 135404), (304, 67702), (608, 33851)]