13257855

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{173}}^1$

素因数の和:328

約数の個数: 48

約数和(自身を含む): 25081056

約数和(自身を除く): 11823201

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 131, 173, 195, 393, 519, 585, 655, 865, 1179, 1557, 1703, 1965, 2249, 2595, 5109, 5895, 6747, 7785, 8515, 11245, 15327, 20241, 22663, 25545, 33735, 67989, 76635, 101205, 113315, 203967, 294619, 339945, 883857, 1019835, 1473095, 2651571, 4419285, 13257855]

約数ペア:

[(1, 13257855), (3, 4419285), (5, 2651571), (9, 1473095), (13, 1019835), (15, 883857), (39, 339945), (45, 294619), (65, 203967), (117, 113315), (131, 101205), (173, 76635), (195, 67989), (393, 33735), (519, 25545), (585, 22663), (655, 20241), (865, 15327), (1179, 11245), (1557, 8515), (1703, 7785), (1965, 6747), (2249, 5895), (2595, 5109)]