21123712

素因数分解:

$2^7\times {\mathrm{227}}^1\times {\mathrm{727}}^1$

素因数の和:968

約数の個数: 32

約数和(自身を含む): 42325920

約数和(自身を除く): 21202208

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 227, 454, 727, 908, 1454, 1816, 2908, 3632, 5816, 7264, 11632, 14528, 23264, 29056, 46528, 93056, 165029, 330058, 660116, 1320232, 2640464, 5280928, 10561856, 21123712]

約数ペア:

[(1, 21123712), (2, 10561856), (4, 5280928), (8, 2640464), (16, 1320232), (32, 660116), (64, 330058), (128, 165029), (227, 93056), (454, 46528), (727, 29056), (908, 23264), (1454, 14528), (1816, 11632), (2908, 7264), (3632, 5816)]