19713993

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{499}}^1\times {\mathrm{1013}}^1$

素因数の和:1528

約数の個数: 16

約数和(自身を含む): 28392000

約数和(自身を除く): 8678007

約数列:

[1, 3, 13, 39, 499, 1013, 1497, 3039, 6487, 13169, 19461, 39507, 505487, 1516461, 6571331, 19713993]

約数ペア:

[(1, 19713993), (3, 6571331), (13, 1516461), (39, 505487), (499, 39507), (1013, 19461), (1497, 13169), (3039, 6487)]