21270417

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{59581}}^1$

素因数の和:59608

約数の個数: 16

約数和(自身を含む): 34319232

約数和(自身を除く): 13048815

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 59581, 178743, 417067, 1012877, 1251201, 3038631, 7090139, 21270417]

約数ペア:

[(1, 21270417), (3, 7090139), (7, 3038631), (17, 1251201), (21, 1012877), (51, 417067), (119, 178743), (357, 59581)]