20409864

素因数分解:

$2^3\times 3^1\times {\mathrm{43}}^1\times {\mathrm{19777}}^1$

素因数の和:19829

約数の個数: 32

約数和(自身を含む): 52213920

約数和(自身を除く): 31804056

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 43, 86, 129, 172, 258, 344, 516, 1032, 19777, 39554, 59331, 79108, 118662, 158216, 237324, 474648, 850411, 1700822, 2551233, 3401644, 5102466, 6803288, 10204932, 20409864]

約数ペア:

[(1, 20409864), (2, 10204932), (3, 6803288), (4, 5102466), (6, 3401644), (8, 2551233), (12, 1700822), (24, 850411), (43, 474648), (86, 237324), (129, 158216), (172, 118662), (258, 79108), (344, 59331), (516, 39554), (1032, 19777)]