13017921

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{8731}}^1$

素因数の和:8812

約数の個数: 16

約数和(自身を含む): 20118528

約数和(自身を除く): 7100607

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 8731, 26193, 61117, 183351, 619901, 1859703, 4339307, 13017921]

約数ペア:

[(1, 13017921), (3, 4339307), (7, 1859703), (21, 619901), (71, 183351), (213, 61117), (497, 26193), (1491, 8731)]