21443800

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{53}}^1$

素因数の和:110

約数の個数: 144

約数和(自身を含む): 61670160

約数和(自身を除く): 40226360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 25, 28, 34, 35, 40, 50, 53, 56, 68, 70, 85, 100, 106, 119, 136, 140, 170, 175, 200, 212, 238, 265, 280, 289, 340, 350, 371, 424, 425, 476, 530, 578, 595, 680, 700, 742, 850, 901, 952, 1060, 1156, 1190, 1325, 1400, 1445, 1484, 1700, 1802, 1855, 2023, 2120, 2312, 2380, 2650, 2890, 2968, 2975, 3400, 3604, 3710, 4046, 4505, 4760, 5300, 5780, 5950, 6307, 7208, 7225, 7420, 8092, 9010, 9275, 10115, 10600, 11560, 11900, 12614, 14450, 14840, 15317, 16184, 18020, 18550, 20230, 22525, 23800, 25228, 28900, 30634, 31535, 36040, 37100, 40460, 45050, 50456, 50575, 57800, 61268, 63070, 74200, 76585, 80920, 90100, 101150, 107219, 122536, 126140, 153170, 157675, 180200, 202300, 214438, 252280, 306340, 315350, 382925, 404600, 428876, 536095, 612680, 630700, 765850, 857752, 1072190, 1261400, 1531700, 2144380, 2680475, 3063400, 4288760, 5360950, 10721900, 21443800]

約数ペア:

[(1, 21443800), (2, 10721900), (4, 5360950), (5, 4288760), (7, 3063400), (8, 2680475), (10, 2144380), (14, 1531700), (17, 1261400), (20, 1072190), (25, 857752), (28, 765850), (34, 630700), (35, 612680), (40, 536095), (50, 428876), (53, 404600), (56, 382925), (68, 315350), (70, 306340), (85, 252280), (100, 214438), (106, 202300), (119, 180200), (136, 157675), (140, 153170), (170, 126140), (175, 122536), (200, 107219), (212, 101150), (238, 90100), (265, 80920), (280, 76585), (289, 74200), (340, 63070), (350, 61268), (371, 57800), (424, 50575), (425, 50456), (476, 45050), (530, 40460), (578, 37100), (595, 36040), (680, 31535), (700, 30634), (742, 28900), (850, 25228), (901, 23800), (952, 22525), (1060, 20230), (1156, 18550), (1190, 18020), (1325, 16184), (1400, 15317), (1445, 14840), (1484, 14450), (1700, 12614), (1802, 11900), (1855, 11560), (2023, 10600), (2120, 10115), (2312, 9275), (2380, 9010), (2650, 8092), (2890, 7420), (2968, 7225), (2975, 7208), (3400, 6307), (3604, 5950), (3710, 5780), (4046, 5300), (4505, 4760)]