20784506

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{509}}^1\times {\mathrm{1201}}^1$

素因数の和:1729

約数の個数: 16

約数和(自身を含む): 33103080

約数和(自身を除く): 12318574

約数列:

[1, 2, 17, 34, 509, 1018, 1201, 2402, 8653, 17306, 20417, 40834, 611309, 1222618, 10392253, 20784506]

約数ペア:

[(1, 20784506), (2, 10392253), (17, 1222618), (34, 611309), (509, 40834), (1018, 20417), (1201, 17306), (2402, 8653)]