20003181

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{523}}^1$

素因数の和:617

約数の個数: 32

約数和(自身を含む): 31188480

約数和(自身を除く): 11185299

約数列:

[1, 3, 11, 19, 33, 57, 61, 183, 209, 523, 627, 671, 1159, 1569, 2013, 3477, 5753, 9937, 12749, 17259, 29811, 31903, 38247, 95709, 109307, 327921, 350933, 606157, 1052799, 1818471, 6667727, 20003181]

約数ペア:

[(1, 20003181), (3, 6667727), (11, 1818471), (19, 1052799), (33, 606157), (57, 350933), (61, 327921), (183, 109307), (209, 95709), (523, 38247), (627, 31903), (671, 29811), (1159, 17259), (1569, 12749), (2013, 9937), (3477, 5753)]