21220616

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{2087}}^1$

素因数の和:2165

約数の個数: 32

約数和(自身を含む): 42094080

約数和(自身を除く): 20873464

約数列:

[1, 2, 4, 8, 31, 41, 62, 82, 124, 164, 248, 328, 1271, 2087, 2542, 4174, 5084, 8348, 10168, 16696, 64697, 85567, 129394, 171134, 258788, 342268, 517576, 684536, 2652577, 5305154, 10610308, 21220616]

約数ペア:

[(1, 21220616), (2, 10610308), (4, 5305154), (8, 2652577), (31, 684536), (41, 517576), (62, 342268), (82, 258788), (124, 171134), (164, 129394), (248, 85567), (328, 64697), (1271, 16696), (2087, 10168), (2542, 8348), (4174, 5084)]