21294465

素因数分解:

$3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{19447}}^1$

素因数の和:19528

約数の個数: 16

約数和(自身を含む): 34539648

約数和(自身を除く): 13245183

約数列:

[1, 3, 5, 15, 73, 219, 365, 1095, 19447, 58341, 97235, 291705, 1419631, 4258893, 7098155, 21294465]

約数ペア:

[(1, 21294465), (3, 7098155), (5, 4258893), (15, 1419631), (73, 291705), (219, 97235), (365, 58341), (1095, 19447)]