20147883

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{13513}}^1$

素因数の和:13594

約数の個数: 16

約数和(自身を含む): 31136256

約数和(自身を除く): 10988373

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 13513, 40539, 94591, 283773, 959423, 2878269, 6715961, 20147883]

約数ペア:

[(1, 20147883), (3, 6715961), (7, 2878269), (21, 959423), (71, 283773), (213, 94591), (497, 40539), (1491, 13513)]