21241535

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{26387}}^1$

素因数の和:26422

約数の個数: 16

約数和(自身を含む): 30398976

約数和(自身を除く): 9157441

約数列:

[1, 5, 7, 23, 35, 115, 161, 805, 26387, 131935, 184709, 606901, 923545, 3034505, 4248307, 21241535]

約数ペア:

[(1, 21241535), (5, 4248307), (7, 3034505), (23, 923545), (35, 606901), (115, 184709), (161, 131935), (805, 26387)]