28120581

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{457}}^1$

素因数の和:562

約数の個数: 32

約数和(自身を含む): 43528320

約数和(自身を除く): 15407739

約数列:

[1, 3, 9, 27, 43, 53, 129, 159, 387, 457, 477, 1161, 1371, 1431, 2279, 4113, 6837, 12339, 19651, 20511, 24221, 58953, 61533, 72663, 176859, 217989, 530577, 653967, 1041503, 3124509, 9373527, 28120581]

約数ペア:

[(1, 28120581), (3, 9373527), (9, 3124509), (27, 1041503), (43, 653967), (53, 530577), (129, 217989), (159, 176859), (387, 72663), (457, 61533), (477, 58953), (1161, 24221), (1371, 20511), (1431, 19651), (2279, 12339), (4113, 6837)]