21916139

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{367}}^1\times {\mathrm{449}}^1$

素因数の和:842

約数の個数: 16

約数和(自身を含む): 26496000

約数和(自身を除く): 4579861

約数列:

[1, 7, 19, 133, 367, 449, 2569, 3143, 6973, 8531, 48811, 59717, 164783, 1153481, 3130877, 21916139]

約数ペア:

[(1, 21916139), (7, 3130877), (19, 1153481), (133, 164783), (367, 59717), (449, 48811), (2569, 8531), (3143, 6973)]