21239245

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{1249}}^1$

素因数の和:1452

約数の個数: 16

約数和(自身を含む): 27000000

約数和(自身を除く): 5760755

約数列:

[1, 5, 19, 95, 179, 895, 1249, 3401, 6245, 17005, 23731, 118655, 223571, 1117855, 4247849, 21239245]

約数ペア:

[(1, 21239245), (5, 4247849), (19, 1117855), (95, 223571), (179, 118655), (895, 23731), (1249, 17005), (3401, 6245)]