21426145

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{151}}^1$

素因数の和:265

約数の個数: 32

約数和(自身を含む): 29111040

約数和(自身を除く): 7684895

約数列:

[1, 5, 13, 37, 59, 65, 151, 185, 295, 481, 755, 767, 1963, 2183, 2405, 3835, 5587, 8909, 9815, 10915, 27935, 28379, 44545, 72631, 115817, 141895, 329633, 363155, 579085, 1648165, 4285229, 21426145]

約数ペア:

[(1, 21426145), (5, 4285229), (13, 1648165), (37, 579085), (59, 363155), (65, 329633), (151, 141895), (185, 115817), (295, 72631), (481, 44545), (755, 28379), (767, 27935), (1963, 10915), (2183, 9815), (2405, 8909), (3835, 5587)]