21430552

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{13}}^2\times {\mathrm{131}}^1$

素因数の和:185

約数の個数: 72

約数和(自身を含む): 48191220

約数和(自身を除く): 26760668

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 121, 131, 143, 169, 242, 262, 286, 338, 484, 524, 572, 676, 968, 1048, 1144, 1352, 1441, 1573, 1703, 1859, 2882, 3146, 3406, 3718, 5764, 6292, 6812, 7436, 11528, 12584, 13624, 14872, 15851, 18733, 20449, 22139, 31702, 37466, 40898, 44278, 63404, 74932, 81796, 88556, 126808, 149864, 163592, 177112, 206063, 243529, 412126, 487058, 824252, 974116, 1648504, 1948232, 2678819, 5357638, 10715276, 21430552]

約数ペア:

[(1, 21430552), (2, 10715276), (4, 5357638), (8, 2678819), (11, 1948232), (13, 1648504), (22, 974116), (26, 824252), (44, 487058), (52, 412126), (88, 243529), (104, 206063), (121, 177112), (131, 163592), (143, 149864), (169, 126808), (242, 88556), (262, 81796), (286, 74932), (338, 63404), (484, 44278), (524, 40898), (572, 37466), (676, 31702), (968, 22139), (1048, 20449), (1144, 18733), (1352, 15851), (1441, 14872), (1573, 13624), (1703, 12584), (1859, 11528), (2882, 7436), (3146, 6812), (3406, 6292), (3718, 5764)]