157216941

素因数分解:

$3^2\times 7^2\times {\mathrm{356501}}^1$

素因数の和:356521

約数の個数: 18

約数和(自身を含む): 264167982

約数和(自身を除く): 106951041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 356501, 1069503, 2495507, 3208509, 7486521, 17468549, 22459563, 52405647, 157216941]

約数ペア:

[(1, 157216941), (3, 52405647), (7, 22459563), (9, 17468549), (21, 7486521), (49, 3208509), (63, 2495507), (147, 1069503), (441, 356501)]