21309992

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{2143}}^1$

素因数の和:2273

約数の個数: 32

約数和(自身を含む): 43994880

約数和(自身を除く): 22684888

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 113, 226, 452, 904, 1243, 2143, 2486, 4286, 4972, 8572, 9944, 17144, 23573, 47146, 94292, 188584, 242159, 484318, 968636, 1937272, 2663749, 5327498, 10654996, 21309992]

約数ペア:

[(1, 21309992), (2, 10654996), (4, 5327498), (8, 2663749), (11, 1937272), (22, 968636), (44, 484318), (88, 242159), (113, 188584), (226, 94292), (452, 47146), (904, 23573), (1243, 17144), (2143, 9944), (2486, 8572), (4286, 4972)]