20881755

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{14969}}^1$

素因数の和:15011

約数の個数: 24

約数和(自身を含む): 37365120

約数和(自身を除く): 16483365

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 1395, 14969, 44907, 74845, 134721, 224535, 464039, 673605, 1392117, 2320195, 4176351, 6960585, 20881755]

約数ペア:

[(1, 20881755), (3, 6960585), (5, 4176351), (9, 2320195), (15, 1392117), (31, 673605), (45, 464039), (93, 224535), (155, 134721), (279, 74845), (465, 44907), (1395, 14969)]