25909821

素因数分解:

$3^3\times 7^1\times {\mathrm{137089}}^1$

素因数の和:137105

約数の個数: 16

約数和(自身を含む): 43868800

約数和(自身を除く): 17958979

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 137089, 411267, 959623, 1233801, 2878869, 3701403, 8636607, 25909821]

約数ペア:

[(1, 25909821), (3, 8636607), (7, 3701403), (9, 2878869), (21, 1233801), (27, 959623), (63, 411267), (189, 137089)]