18931227

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{12697}}^1$

素因数の和:12778

約数の個数: 16

約数和(自身を含む): 29256192

約数和(自身を除く): 10324965

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 12697, 38091, 88879, 266637, 901487, 2704461, 6310409, 18931227]

約数ペア:

[(1, 18931227), (3, 6310409), (7, 2704461), (21, 901487), (71, 266637), (213, 88879), (497, 38091), (1491, 12697)]