38490921

素因数分解:

$3^2\times 7^2\times {\mathrm{87281}}^1$

素因数の和:87301

約数の個数: 18

約数和(自身を含む): 64675962

約数和(自身を除く): 26185041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 87281, 261843, 610967, 785529, 1832901, 4276769, 5498703, 12830307, 38490921]

約数ペア:

[(1, 38490921), (3, 12830307), (7, 5498703), (9, 4276769), (21, 1832901), (49, 785529), (63, 610967), (147, 261843), (441, 87281)]