21671438

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{7219}}^1$

素因数の和:7319

約数の個数: 16

約数和(自身を含む): 34656000

約数和(自身を除く): 12984562

約数列:

[1, 2, 19, 38, 79, 158, 1501, 3002, 7219, 14438, 137161, 274322, 570301, 1140602, 10835719, 21671438]

約数ペア:

[(1, 21671438), (2, 10835719), (19, 1140602), (38, 570301), (79, 274322), (158, 137161), (1501, 14438), (3002, 7219)]