20625855

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1\times {\mathrm{181}}^1$

素因数の和:367

約数の個数: 32

約数和(自身を含む): 33965568

約数和(自身を除く): 13339713

約数列:

[1, 3, 5, 15, 71, 107, 181, 213, 321, 355, 535, 543, 905, 1065, 1605, 2715, 7597, 12851, 19367, 22791, 37985, 38553, 58101, 64255, 96835, 113955, 192765, 290505, 1375057, 4125171, 6875285, 20625855]

約数ペア:

[(1, 20625855), (3, 6875285), (5, 4125171), (15, 1375057), (71, 290505), (107, 192765), (181, 113955), (213, 96835), (321, 64255), (355, 58101), (535, 38553), (543, 37985), (905, 22791), (1065, 19367), (1605, 12851), (2715, 7597)]