212919921

素因数分解:

$3^4\times {\mathrm{53}}^1\times {\mathrm{49597}}^1$

素因数の和:49662

約数の個数: 20

約数和(自身を含む): 324073332

約数和(自身を除く): 111153411

約数列:

[1, 3, 9, 27, 53, 81, 159, 477, 1431, 4293, 49597, 148791, 446373, 1339119, 2628641, 4017357, 7885923, 23657769, 70973307, 212919921]

約数ペア:

[(1, 212919921), (3, 70973307), (9, 23657769), (27, 7885923), (53, 4017357), (81, 2628641), (159, 1339119), (477, 446373), (1431, 148791), (4293, 49597)]