21816095

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{20107}}^1$

素因数の和:20150

約数の個数: 16

約数和(自身を含む): 30885888

約数和(自身を除く): 9069793

約数列:

[1, 5, 7, 31, 35, 155, 217, 1085, 20107, 100535, 140749, 623317, 703745, 3116585, 4363219, 21816095]

約数ペア:

[(1, 21816095), (5, 4363219), (7, 3116585), (31, 703745), (35, 623317), (155, 140749), (217, 100535), (1085, 20107)]