21622808

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{239}}^1\times {\mathrm{263}}^1$

素因数の和:551

約数の個数: 32

約数和(自身を含む): 41817600

約数和(自身を除く): 20194792

約数列:

[1, 2, 4, 8, 43, 86, 172, 239, 263, 344, 478, 526, 956, 1052, 1912, 2104, 10277, 11309, 20554, 22618, 41108, 45236, 62857, 82216, 90472, 125714, 251428, 502856, 2702851, 5405702, 10811404, 21622808]

約数ペア:

[(1, 21622808), (2, 10811404), (4, 5405702), (8, 2702851), (43, 502856), (86, 251428), (172, 125714), (239, 90472), (263, 82216), (344, 62857), (478, 45236), (526, 41108), (956, 22618), (1052, 20554), (1912, 11309), (2104, 10277)]