21080344

素因数分解:

$2^3\times {\mathrm{67}}^2\times {\mathrm{587}}^1$

素因数の和:727

約数の個数: 24

約数和(自身を含む): 40192740

約数和(自身を除く): 19112396

約数列:

[1, 2, 4, 8, 67, 134, 268, 536, 587, 1174, 2348, 4489, 4696, 8978, 17956, 35912, 39329, 78658, 157316, 314632, 2635043, 5270086, 10540172, 21080344]

約数ペア:

[(1, 21080344), (2, 10540172), (4, 5270086), (8, 2635043), (67, 314632), (134, 157316), (268, 78658), (536, 39329), (587, 35912), (1174, 17956), (2348, 8978), (4489, 4696)]