20021115

素因数分解:

$3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{21881}}^1$

素因数の和:21950

約数の個数: 16

約数和(自身を含む): 32560416

約数和(自身を除く): 12539301

約数列:

[1, 3, 5, 15, 61, 183, 305, 915, 21881, 65643, 109405, 328215, 1334741, 4004223, 6673705, 20021115]

約数ペア:

[(1, 20021115), (3, 6673705), (5, 4004223), (15, 1334741), (61, 328215), (183, 109405), (305, 65643), (915, 21881)]