40087341

素因数分解:

$3^2\times 7^2\times {\mathrm{90901}}^1$

素因数の和:90921

約数の個数: 18

約数和(自身を含む): 67358382

約数和(自身を除く): 27271041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 90901, 272703, 636307, 818109, 1908921, 4454149, 5726763, 13362447, 40087341]

約数ペア:

[(1, 40087341), (3, 13362447), (7, 5726763), (9, 4454149), (21, 1908921), (49, 818109), (63, 636307), (147, 272703), (441, 90901)]