221293028

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{193}}^1$

素因数の和:345

約数の個数: 72

約数和(自身を含む): 450812544

約数和(自身を除く): 229519516

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 92, 103, 121, 193, 206, 242, 253, 386, 412, 484, 506, 772, 1012, 1133, 2123, 2266, 2369, 2783, 4246, 4439, 4532, 4738, 5566, 8492, 8878, 9476, 11132, 12463, 17756, 19879, 23353, 24926, 26059, 39758, 46706, 48829, 49852, 52118, 79516, 93412, 97658, 104236, 195316, 218669, 286649, 437338, 457217, 537119, 573298, 874676, 914434, 1074238, 1146596, 1828868, 2148476, 2405359, 4810718, 5029387, 9621436, 10058774, 20117548, 55323257, 110646514, 221293028]

約数ペア:

[(1, 221293028), (2, 110646514), (4, 55323257), (11, 20117548), (22, 10058774), (23, 9621436), (44, 5029387), (46, 4810718), (92, 2405359), (103, 2148476), (121, 1828868), (193, 1146596), (206, 1074238), (242, 914434), (253, 874676), (386, 573298), (412, 537119), (484, 457217), (506, 437338), (772, 286649), (1012, 218669), (1133, 195316), (2123, 104236), (2266, 97658), (2369, 93412), (2783, 79516), (4246, 52118), (4439, 49852), (4532, 48829), (4738, 46706), (5566, 39758), (8492, 26059), (8878, 24926), (9476, 23353), (11132, 19879), (12463, 17756)]