421551208

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{499}}^1\times {\mathrm{8123}}^1$

素因数の和:8641

約数の個数: 32

約数和(自身を含む): 853020000

約数和(自身を除く): 431468792

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 499, 998, 1996, 3992, 6487, 8123, 12974, 16246, 25948, 32492, 51896, 64984, 105599, 211198, 422396, 844792, 4053377, 8106754, 16213508, 32427016, 52693901, 105387802, 210775604, 421551208]

約数ペア:

[(1, 421551208), (2, 210775604), (4, 105387802), (8, 52693901), (13, 32427016), (26, 16213508), (52, 8106754), (104, 4053377), (499, 844792), (998, 422396), (1996, 211198), (3992, 105599), (6487, 64984), (8123, 51896), (12974, 32492), (16246, 25948)]