20793619

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{233}}^1$

素因数の和:331

約数の個数: 32

約数和(自身を含む): 27855360

約数和(自身を除く): 7061741

約数列:

[1, 7, 11, 19, 61, 77, 133, 209, 233, 427, 671, 1159, 1463, 1631, 2563, 4427, 4697, 8113, 12749, 14213, 17941, 30989, 48697, 89243, 99491, 156343, 270047, 340879, 1094401, 1890329, 2970517, 20793619]

約数ペア:

[(1, 20793619), (7, 2970517), (11, 1890329), (19, 1094401), (61, 340879), (77, 270047), (133, 156343), (209, 99491), (233, 89243), (427, 48697), (671, 30989), (1159, 17941), (1463, 14213), (1631, 12749), (2563, 8113), (4427, 4697)]