20939108

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:216

約数の個数: 48

約数和(自身を含む): 40212480

約数和(自身を除く): 19273372

約数列:

[1, 2, 4, 23, 43, 46, 67, 79, 86, 92, 134, 158, 172, 268, 316, 989, 1541, 1817, 1978, 2881, 3082, 3397, 3634, 3956, 5293, 5762, 6164, 6794, 7268, 10586, 11524, 13588, 21172, 66263, 78131, 121739, 132526, 156262, 227599, 243478, 265052, 312524, 455198, 486956, 910396, 5234777, 10469554, 20939108]

約数ペア:

[(1, 20939108), (2, 10469554), (4, 5234777), (23, 910396), (43, 486956), (46, 455198), (67, 312524), (79, 265052), (86, 243478), (92, 227599), (134, 156262), (158, 132526), (172, 121739), (268, 78131), (316, 66263), (989, 21172), (1541, 13588), (1817, 11524), (1978, 10586), (2881, 7268), (3082, 6794), (3397, 6164), (3634, 5762), (3956, 5293)]