20565821403

素因数分解:

$3^3\times {\mathrm{149}}^1\times {\mathrm{179}}^1\times {\mathrm{28559}}^1$

素因数の和:28896

約数の個数: 32

約数和(自身を含む): 30844800000

約数和(自身を除く): 10278978597

約数列:

[1, 3, 9, 27, 149, 179, 447, 537, 1341, 1611, 4023, 4833, 26671, 28559, 80013, 85677, 240039, 257031, 720117, 771093, 4255291, 5112061, 12765873, 15336183, 38297619, 46008549, 114892857, 138025647, 761697089, 2285091267, 6855273801, 20565821403]

約数ペア:

[(1, 20565821403), (3, 6855273801), (9, 2285091267), (27, 761697089), (149, 138025647), (179, 114892857), (447, 46008549), (537, 38297619), (1341, 15336183), (1611, 12765873), (4023, 5112061), (4833, 4255291), (26671, 771093), (28559, 720117), (80013, 257031), (85677, 240039)]