20187399

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{307}}^1\times {\mathrm{953}}^1$

素因数の和:1286

約数の個数: 16

約数和(自身を含む): 28207872

約数和(自身を除く): 8020473

約数列:

[1, 3, 23, 69, 307, 921, 953, 2859, 7061, 21183, 21919, 65757, 292571, 877713, 6729133, 20187399]

約数ペア:

[(1, 20187399), (3, 6729133), (23, 877713), (69, 292571), (307, 65757), (921, 21919), (953, 21183), (2859, 7061)]