20537907

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:263

約数の個数: 32

約数和(自身を含む): 30623040

約数和(自身を除く): 10085133

約数列:

[1, 3, 13, 39, 61, 89, 97, 183, 267, 291, 793, 1157, 1261, 2379, 3471, 3783, 5429, 5917, 8633, 16287, 17751, 25899, 70577, 76921, 112229, 211731, 230763, 336687, 526613, 1579839, 6845969, 20537907]

約数ペア:

[(1, 20537907), (3, 6845969), (13, 1579839), (39, 526613), (61, 336687), (89, 230763), (97, 211731), (183, 112229), (267, 76921), (291, 70577), (793, 25899), (1157, 17751), (1261, 16287), (2379, 8633), (3471, 5917), (3783, 5429)]