21905752

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1$

素因数の和:256

約数の個数: 64

約数和(自身を含む): 47692800

約数和(自身を除く): 25787048

約数列:

[1, 2, 4, 8, 11, 22, 23, 44, 46, 79, 88, 92, 137, 158, 184, 253, 274, 316, 506, 548, 632, 869, 1012, 1096, 1507, 1738, 1817, 2024, 3014, 3151, 3476, 3634, 6028, 6302, 6952, 7268, 10823, 12056, 12604, 14536, 19987, 21646, 25208, 34661, 39974, 43292, 69322, 79948, 86584, 119053, 138644, 159896, 238106, 248929, 277288, 476212, 497858, 952424, 995716, 1991432, 2738219, 5476438, 10952876, 21905752]

約数ペア:

[(1, 21905752), (2, 10952876), (4, 5476438), (8, 2738219), (11, 1991432), (22, 995716), (23, 952424), (44, 497858), (46, 476212), (79, 277288), (88, 248929), (92, 238106), (137, 159896), (158, 138644), (184, 119053), (253, 86584), (274, 79948), (316, 69322), (506, 43292), (548, 39974), (632, 34661), (869, 25208), (1012, 21646), (1096, 19987), (1507, 14536), (1738, 12604), (1817, 12056), (2024, 10823), (3014, 7268), (3151, 6952), (3476, 6302), (3634, 6028)]