20181323505

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{443}}^1\times {\mathrm{61981}}^1$

素因数の和:62446

約数の個数: 48

約数和(自身を含む): 37647370944

約数和(自身を除く): 17466047439

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 443, 735, 1329, 2215, 3101, 6645, 9303, 15505, 21707, 46515, 61981, 65121, 108535, 185943, 309905, 325605, 433867, 929715, 1301601, 2169335, 3037069, 6508005, 9111207, 15185345, 27457583, 45556035, 82372749, 137287915, 192203081, 411863745, 576609243, 961015405, 1345421567, 2883046215, 4036264701, 6727107835, 20181323505]

約数ペア:

[(1, 20181323505), (3, 6727107835), (5, 4036264701), (7, 2883046215), (15, 1345421567), (21, 961015405), (35, 576609243), (49, 411863745), (105, 192203081), (147, 137287915), (245, 82372749), (443, 45556035), (735, 27457583), (1329, 15185345), (2215, 9111207), (3101, 6508005), (6645, 3037069), (9303, 2169335), (15505, 1301601), (21707, 929715), (46515, 433867), (61981, 325605), (65121, 309905), (108535, 185943)]