20815652

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{241}}^1$

素因数の和:420

約数の個数: 48

約数和(自身を含む): 43257984

約数和(自身を除く): 22442332

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 151, 241, 286, 302, 482, 572, 604, 964, 1661, 1963, 2651, 3133, 3322, 3926, 5302, 6266, 6644, 7852, 10604, 12532, 21593, 34463, 36391, 43186, 68926, 72782, 86372, 137852, 145564, 400301, 473083, 800602, 946166, 1601204, 1892332, 5203913, 10407826, 20815652]

約数ペア:

[(1, 20815652), (2, 10407826), (4, 5203913), (11, 1892332), (13, 1601204), (22, 946166), (26, 800602), (44, 473083), (52, 400301), (143, 145564), (151, 137852), (241, 86372), (286, 72782), (302, 68926), (482, 43186), (572, 36391), (604, 34463), (964, 21593), (1661, 12532), (1963, 10604), (2651, 7852), (3133, 6644), (3322, 6266), (3926, 5302)]