21305778

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{9419}}^1$

素因数の和:9466

約数の個数: 32

約数和(自身を含む): 47476800

約数和(自身を除く): 26171022

約数列:

[1, 2, 3, 6, 13, 26, 29, 39, 58, 78, 87, 174, 377, 754, 1131, 2262, 9419, 18838, 28257, 56514, 122447, 244894, 273151, 367341, 546302, 734682, 819453, 1638906, 3550963, 7101926, 10652889, 21305778]

約数ペア:

[(1, 21305778), (2, 10652889), (3, 7101926), (6, 3550963), (13, 1638906), (26, 819453), (29, 734682), (39, 546302), (58, 367341), (78, 273151), (87, 244894), (174, 122447), (377, 56514), (754, 28257), (1131, 18838), (2262, 9419)]