21742406

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{67523}}^1$

素因数の和:67555

約数の個数: 16

約数和(自身を含む): 38893824

約数和(自身を除く): 17151418

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 67523, 135046, 472661, 945322, 1553029, 3106058, 10871203, 21742406]

約数ペア:

[(1, 21742406), (2, 10871203), (7, 3106058), (14, 1553029), (23, 945322), (46, 472661), (161, 135046), (322, 67523)]