20216439

素因数分解:

$3^3\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{179}}^1$

素因数の和:324

約数の個数: 32

約数和(自身を含む): 31104000

約数和(自身を除く): 10887561

約数列:

[1, 3, 9, 27, 47, 89, 141, 179, 267, 423, 537, 801, 1269, 1611, 2403, 4183, 4833, 8413, 12549, 15931, 25239, 37647, 47793, 75717, 112941, 143379, 227151, 430137, 748757, 2246271, 6738813, 20216439]

約数ペア:

[(1, 20216439), (3, 6738813), (9, 2246271), (27, 748757), (47, 430137), (89, 227151), (141, 143379), (179, 112941), (267, 75717), (423, 47793), (537, 37647), (801, 25239), (1269, 15931), (1611, 12549), (2403, 8413), (4183, 4833)]