256398519

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{461}}^1\times {\mathrm{1097}}^1$

素因数の和:1587

約数の個数: 24

約数和(自身を含む): 371326032

約数和(自身を除く): 114927513

約数列:

[1, 3, 13, 39, 169, 461, 507, 1097, 1383, 3291, 5993, 14261, 17979, 42783, 77909, 185393, 233727, 505717, 556179, 1517151, 6574321, 19722963, 85466173, 256398519]

約数ペア:

[(1, 256398519), (3, 85466173), (13, 19722963), (39, 6574321), (169, 1517151), (461, 556179), (507, 505717), (1097, 233727), (1383, 185393), (3291, 77909), (5993, 42783), (14261, 17979)]