17970921

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{1609}}^1$

素因数の和:1705

約数の個数: 24

約数和(自身を含む): 27878760

約数和(自身を除く): 9907839

約数列:

[1, 3, 9, 17, 51, 73, 153, 219, 657, 1241, 1609, 3723, 4827, 11169, 14481, 27353, 82059, 117457, 246177, 352371, 1057113, 1996769, 5990307, 17970921]

約数ペア:

[(1, 17970921), (3, 5990307), (9, 1996769), (17, 1057113), (51, 352371), (73, 246177), (153, 117457), (219, 82059), (657, 27353), (1241, 14481), (1609, 11169), (3723, 4827)]