19564835

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{2789}}^1$

素因数の和:2878

約数の個数: 16

約数和(自身を含む): 24909120

約数和(自身を除く): 5344285

約数列:

[1, 5, 23, 61, 115, 305, 1403, 2789, 7015, 13945, 64147, 170129, 320735, 850645, 3912967, 19564835]

約数ペア:

[(1, 19564835), (5, 3912967), (23, 850645), (61, 320735), (115, 170129), (305, 64147), (1403, 13945), (2789, 7015)]