21490370

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{2473}}^1$

素因数の和:2570

約数の個数: 32

約数和(自身を含む): 42750720

約数和(自身を除く): 21260350

約数列:

[1, 2, 5, 10, 11, 22, 55, 79, 110, 158, 395, 790, 869, 1738, 2473, 4345, 4946, 8690, 12365, 24730, 27203, 54406, 136015, 195367, 272030, 390734, 976835, 1953670, 2149037, 4298074, 10745185, 21490370]

約数ペア:

[(1, 21490370), (2, 10745185), (5, 4298074), (10, 2149037), (11, 1953670), (22, 976835), (55, 390734), (79, 272030), (110, 195367), (158, 136015), (395, 54406), (790, 27203), (869, 24730), (1738, 12365), (2473, 8690), (4345, 4946)]