20525751

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{179}}^1$

素因数の和:356

約数の個数: 32

約数和(自身を含む): 31795200

約数和(自身を除く): 11269449

約数列:

[1, 3, 9, 27, 31, 93, 137, 179, 279, 411, 537, 837, 1233, 1611, 3699, 4247, 4833, 5549, 12741, 16647, 24523, 38223, 49941, 73569, 114669, 149823, 220707, 662121, 760213, 2280639, 6841917, 20525751]

約数ペア:

[(1, 20525751), (3, 6841917), (9, 2280639), (27, 760213), (31, 662121), (93, 220707), (137, 149823), (179, 114669), (279, 73569), (411, 49941), (537, 38223), (837, 24523), (1233, 16647), (1611, 12741), (3699, 5549), (4247, 4833)]