18789897

素因数分解:

$3^1\times 7^1\times {\mathrm{571}}^1\times {\mathrm{1567}}^1$

素因数の和:2148

約数の個数: 16

約数和(自身を含む): 28700672

約数和(自身を除く): 9910775

約数列:

[1, 3, 7, 21, 571, 1567, 1713, 3997, 4701, 10969, 11991, 32907, 894757, 2684271, 6263299, 18789897]

約数ペア:

[(1, 18789897), (3, 6263299), (7, 2684271), (21, 894757), (571, 32907), (1567, 11991), (1713, 10969), (3997, 4701)]