12978021

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{36353}}^1$

素因数の和:36380

約数の個数: 16

約数和(自身を含む): 20939904

約数和(自身を除く): 7961883

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 36353, 109059, 254471, 618001, 763413, 1854003, 4326007, 12978021]

約数ペア:

[(1, 12978021), (3, 4326007), (7, 1854003), (17, 763413), (21, 618001), (51, 254471), (119, 109059), (357, 36353)]