20131315

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{1453}}^1$

素因数の和:1638

約数の個数: 16

約数和(自身を含む): 25753248

約数和(自身を除く): 5621933

約数列:

[1, 5, 17, 85, 163, 815, 1453, 2771, 7265, 13855, 24701, 123505, 236839, 1184195, 4026263, 20131315]

約数ペア:

[(1, 20131315), (5, 4026263), (17, 1184195), (85, 236839), (163, 123505), (815, 24701), (1453, 13855), (2771, 7265)]