13981023

素因数分解:

$3^2\times 7^4\times {\mathrm{647}}^1$

素因数の和:681

約数の個数: 30

約数和(自身を含む): 23595624

約数和(自身を除く): 9614601

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 343, 441, 647, 1029, 1941, 2401, 3087, 4529, 5823, 7203, 13587, 21609, 31703, 40761, 95109, 221921, 285327, 665763, 1553447, 1997289, 4660341, 13981023]

約数ペア:

[(1, 13981023), (3, 4660341), (7, 1997289), (9, 1553447), (21, 665763), (49, 285327), (63, 221921), (147, 95109), (343, 40761), (441, 31703), (647, 21609), (1029, 13587), (1941, 7203), (2401, 5823), (3087, 4529)]