21520336

素因数分解:

$2^4\times {\mathrm{241}}^1\times {\mathrm{5581}}^1$

素因数の和:5830

約数の個数: 20

約数和(自身を含む): 41876164

約数和(自身を除く): 20355828

約数列:

[1, 2, 4, 8, 16, 241, 482, 964, 1928, 3856, 5581, 11162, 22324, 44648, 89296, 1345021, 2690042, 5380084, 10760168, 21520336]

約数ペア:

[(1, 21520336), (2, 10760168), (4, 5380084), (8, 2690042), (16, 1345021), (241, 89296), (482, 44648), (964, 22324), (1928, 11162), (3856, 5581)]