21812973

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{79901}}^1$

素因数の和:79924

約数の個数: 16

約数和(自身を含む): 35796096

約数和(自身を除く): 13983123

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 79901, 239703, 559307, 1038713, 1677921, 3116139, 7270991, 21812973]

約数ペア:

[(1, 21812973), (3, 7270991), (7, 3116139), (13, 1677921), (21, 1038713), (39, 559307), (91, 239703), (273, 79901)]