21727468

素因数分解:

$2^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{12721}}^1$

素因数の和:12793

約数の個数: 24

約数和(自身を含む): 44170784

約数和(自身を除く): 22443316

約数列:

[1, 2, 4, 7, 14, 28, 61, 122, 244, 427, 854, 1708, 12721, 25442, 50884, 89047, 178094, 356188, 775981, 1551962, 3103924, 5431867, 10863734, 21727468]

約数ペア:

[(1, 21727468), (2, 10863734), (4, 5431867), (7, 3103924), (14, 1551962), (28, 775981), (61, 356188), (122, 178094), (244, 89047), (427, 50884), (854, 25442), (1708, 12721)]