21275008

素因数分解:

$2^7\times {\mathrm{71}}^1\times {\mathrm{2341}}^1$

素因数の和:2426

約数の個数: 32

約数和(自身を含む): 42999120

約数和(自身を除く): 21724112

約数列:

[1, 2, 4, 8, 16, 32, 64, 71, 128, 142, 284, 568, 1136, 2272, 2341, 4544, 4682, 9088, 9364, 18728, 37456, 74912, 149824, 166211, 299648, 332422, 664844, 1329688, 2659376, 5318752, 10637504, 21275008]

約数ペア:

[(1, 21275008), (2, 10637504), (4, 5318752), (8, 2659376), (16, 1329688), (32, 664844), (64, 332422), (71, 299648), (128, 166211), (142, 149824), (284, 74912), (568, 37456), (1136, 18728), (2272, 9364), (2341, 9088), (4544, 4682)]