20739238

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{439}}^1$

素因数の和:556

約数の個数: 32

約数和(自身を含む): 35481600

約数和(自身を除く): 14742362

約数列:

[1, 2, 13, 23, 26, 46, 79, 158, 299, 439, 598, 878, 1027, 1817, 2054, 3634, 5707, 10097, 11414, 20194, 23621, 34681, 47242, 69362, 131261, 262522, 450853, 797663, 901706, 1595326, 10369619, 20739238]

約数ペア:

[(1, 20739238), (2, 10369619), (13, 1595326), (23, 901706), (26, 797663), (46, 450853), (79, 262522), (158, 131261), (299, 69362), (439, 47242), (598, 34681), (878, 23621), (1027, 20194), (1817, 11414), (2054, 10097), (3634, 5707)]