21047562

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{661}}^1$

素因数の和:759

約数の個数: 48

約数和(自身を含む): 48021480

約数和(自身を除く): 26973918

約数列:

[1, 2, 3, 6, 9, 18, 29, 58, 61, 87, 122, 174, 183, 261, 366, 522, 549, 661, 1098, 1322, 1769, 1983, 3538, 3966, 5307, 5949, 10614, 11898, 15921, 19169, 31842, 38338, 40321, 57507, 80642, 115014, 120963, 172521, 241926, 345042, 362889, 725778, 1169309, 2338618, 3507927, 7015854, 10523781, 21047562]

約数ペア:

[(1, 21047562), (2, 10523781), (3, 7015854), (6, 3507927), (9, 2338618), (18, 1169309), (29, 725778), (58, 362889), (61, 345042), (87, 241926), (122, 172521), (174, 120963), (183, 115014), (261, 80642), (366, 57507), (522, 40321), (549, 38338), (661, 31842), (1098, 19169), (1322, 15921), (1769, 11898), (1983, 10614), (3538, 5949), (3966, 5307)]