21051338

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{17}}^2\times {\mathrm{43}}^1$

素因数の和:108

約数の個数: 72

約数和(自身を含む): 43117536

約数和(自身を除く): 22066198

約数列:

[1, 2, 7, 11, 14, 17, 22, 34, 43, 77, 86, 119, 121, 154, 187, 238, 242, 289, 301, 374, 473, 578, 602, 731, 847, 946, 1309, 1462, 1694, 2023, 2057, 2618, 3179, 3311, 4046, 4114, 5117, 5203, 6358, 6622, 8041, 10234, 10406, 12427, 14399, 16082, 22253, 24854, 28798, 34969, 36421, 44506, 56287, 69938, 72842, 86989, 88451, 112574, 136697, 173978, 176902, 244783, 273394, 489566, 619157, 956879, 1238314, 1503667, 1913758, 3007334, 10525669, 21051338]

約数ペア:

[(1, 21051338), (2, 10525669), (7, 3007334), (11, 1913758), (14, 1503667), (17, 1238314), (22, 956879), (34, 619157), (43, 489566), (77, 273394), (86, 244783), (119, 176902), (121, 173978), (154, 136697), (187, 112574), (238, 88451), (242, 86989), (289, 72842), (301, 69938), (374, 56287), (473, 44506), (578, 36421), (602, 34969), (731, 28798), (847, 24854), (946, 22253), (1309, 16082), (1462, 14399), (1694, 12427), (2023, 10406), (2057, 10234), (2618, 8041), (3179, 6622), (3311, 6358), (4046, 5203), (4114, 5117)]