21107460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31981}}^1$

素因数の和:32004

約数の個数: 48

約数和(自身を含む): 64475712

約数和(自身を除く): 43368252

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660, 31981, 63962, 95943, 127924, 159905, 191886, 319810, 351791, 383772, 479715, 639620, 703582, 959430, 1055373, 1407164, 1758955, 1918860, 2110746, 3517910, 4221492, 5276865, 7035820, 10553730, 21107460]

約数ペア:

[(1, 21107460), (2, 10553730), (3, 7035820), (4, 5276865), (5, 4221492), (6, 3517910), (10, 2110746), (11, 1918860), (12, 1758955), (15, 1407164), (20, 1055373), (22, 959430), (30, 703582), (33, 639620), (44, 479715), (55, 383772), (60, 351791), (66, 319810), (110, 191886), (132, 159905), (165, 127924), (220, 95943), (330, 63962), (660, 31981)]