20757308

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{3299}}^1$

素因数の和:3338

約数の個数: 36

約数和(自身を含む): 43012200

約数和(自身を除く): 22254892

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 121, 143, 242, 286, 484, 572, 1573, 3146, 3299, 6292, 6598, 13196, 36289, 42887, 72578, 85774, 145156, 171548, 399179, 471757, 798358, 943514, 1596716, 1887028, 5189327, 10378654, 20757308]

約数ペア:

[(1, 20757308), (2, 10378654), (4, 5189327), (11, 1887028), (13, 1596716), (22, 943514), (26, 798358), (44, 471757), (52, 399179), (121, 171548), (143, 145156), (242, 85774), (286, 72578), (484, 42887), (572, 36289), (1573, 13196), (3146, 6598), (3299, 6292)]