21573986

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{90647}}^1$

素因数の和:90673

約数の個数: 16

約数和(自身を含む): 39159936

約数和(自身を除く): 17585950

約数列:

[1, 2, 7, 14, 17, 34, 119, 238, 90647, 181294, 634529, 1269058, 1540999, 3081998, 10786993, 21573986]

約数ペア:

[(1, 21573986), (2, 10786993), (7, 3081998), (14, 1540999), (17, 1269058), (34, 634529), (119, 181294), (238, 90647)]