42720327

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{28087}}^1$

素因数の和:28119

約数の個数: 18

約数和(自身を含む): 66821352

約数和(自身を除く): 24101025

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 28087, 84261, 252783, 365131, 1095393, 3286179, 4746703, 14240109, 42720327]

約数ペア:

[(1, 42720327), (3, 14240109), (9, 4746703), (13, 3286179), (39, 1095393), (117, 365131), (169, 252783), (507, 84261), (1521, 28087)]