31378641

素因数分解:

$3^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1\times {\mathrm{163}}^1$

素因数の和:365

約数の個数: 32

約数和(自身を含む): 49121280

約数和(自身を除く): 17742639

約数列:

[1, 3, 7, 21, 89, 103, 163, 267, 309, 489, 623, 721, 1141, 1869, 2163, 3423, 9167, 14507, 16789, 27501, 43521, 50367, 64169, 101549, 117523, 192507, 304647, 352569, 1494221, 4482663, 10459547, 31378641]

約数ペア:

[(1, 31378641), (3, 10459547), (7, 4482663), (21, 1494221), (89, 352569), (103, 304647), (163, 192507), (267, 117523), (309, 101549), (489, 64169), (623, 50367), (721, 43521), (1141, 27501), (1869, 16789), (2163, 14507), (3423, 9167)]