21850712

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{727}}^1$

素因数の和:780

約数の個数: 48

約数和(自身を含む): 46934160

約数和(自身を除く): 25083448

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 221, 289, 442, 578, 727, 884, 1156, 1454, 1768, 2312, 2908, 3757, 5816, 7514, 9451, 12359, 15028, 18902, 24718, 30056, 37804, 49436, 75608, 98872, 160667, 210103, 321334, 420206, 642668, 840412, 1285336, 1680824, 2731339, 5462678, 10925356, 21850712]

約数ペア:

[(1, 21850712), (2, 10925356), (4, 5462678), (8, 2731339), (13, 1680824), (17, 1285336), (26, 840412), (34, 642668), (52, 420206), (68, 321334), (104, 210103), (136, 160667), (221, 98872), (289, 75608), (442, 49436), (578, 37804), (727, 30056), (884, 24718), (1156, 18902), (1454, 15028), (1768, 12359), (2312, 9451), (2908, 7514), (3757, 5816)]