81247243

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{307}}^1\times {\mathrm{491}}^1$

素因数の和:823

約数の個数: 24

約数和(自身を含む): 103650624

約数和(自身を除く): 22403381

約数列:

[1, 7, 11, 49, 77, 307, 491, 539, 2149, 3377, 3437, 5401, 15043, 23639, 24059, 37807, 150737, 165473, 264649, 1055159, 1658107, 7386113, 11606749, 81247243]

約数ペア:

[(1, 81247243), (7, 11606749), (11, 7386113), (49, 1658107), (77, 1055159), (307, 264649), (491, 165473), (539, 150737), (2149, 37807), (3377, 24059), (3437, 23639), (5401, 15043)]