21124528

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{859}}^1$

素因数の和:949

約数の個数: 40

約数和(自身を含む): 43189200

約数和(自身を除く): 22064672

約数列:

[1, 2, 4, 8, 16, 29, 53, 58, 106, 116, 212, 232, 424, 464, 848, 859, 1537, 1718, 3074, 3436, 6148, 6872, 12296, 13744, 24592, 24911, 45527, 49822, 91054, 99644, 182108, 199288, 364216, 398576, 728432, 1320283, 2640566, 5281132, 10562264, 21124528]

約数ペア:

[(1, 21124528), (2, 10562264), (4, 5281132), (8, 2640566), (16, 1320283), (29, 728432), (53, 398576), (58, 364216), (106, 199288), (116, 182108), (212, 99644), (232, 91054), (424, 49822), (464, 45527), (848, 24911), (859, 24592), (1537, 13744), (1718, 12296), (3074, 6872), (3436, 6148)]