21140350

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1$

素因数の和:83

約数の個数: 144

約数和(自身を含む): 54817920

約数和(自身を除く): 33677570

約数列:

[1, 2, 5, 7, 10, 11, 14, 17, 19, 22, 25, 34, 35, 38, 50, 55, 70, 77, 85, 95, 110, 119, 133, 154, 170, 175, 187, 190, 209, 238, 266, 275, 289, 323, 350, 374, 385, 418, 425, 475, 550, 578, 595, 646, 665, 770, 850, 935, 950, 1045, 1190, 1309, 1330, 1445, 1463, 1615, 1870, 1925, 2023, 2090, 2261, 2618, 2890, 2926, 2975, 3179, 3230, 3325, 3553, 3850, 4046, 4522, 4675, 5225, 5491, 5950, 6358, 6545, 6650, 7106, 7225, 7315, 8075, 9350, 10115, 10450, 10982, 11305, 13090, 14450, 14630, 15895, 16150, 17765, 20230, 22253, 22610, 24871, 27455, 31790, 32725, 35530, 36575, 38437, 44506, 49742, 50575, 54910, 56525, 60401, 65450, 73150, 76874, 79475, 88825, 101150, 111265, 113050, 120802, 124355, 137275, 158950, 177650, 192185, 222530, 248710, 274550, 302005, 384370, 422807, 556325, 604010, 621775, 845614, 960925, 1112650, 1243550, 1510025, 1921850, 2114035, 3020050, 4228070, 10570175, 21140350]

約数ペア:

[(1, 21140350), (2, 10570175), (5, 4228070), (7, 3020050), (10, 2114035), (11, 1921850), (14, 1510025), (17, 1243550), (19, 1112650), (22, 960925), (25, 845614), (34, 621775), (35, 604010), (38, 556325), (50, 422807), (55, 384370), (70, 302005), (77, 274550), (85, 248710), (95, 222530), (110, 192185), (119, 177650), (133, 158950), (154, 137275), (170, 124355), (175, 120802), (187, 113050), (190, 111265), (209, 101150), (238, 88825), (266, 79475), (275, 76874), (289, 73150), (323, 65450), (350, 60401), (374, 56525), (385, 54910), (418, 50575), (425, 49742), (475, 44506), (550, 38437), (578, 36575), (595, 35530), (646, 32725), (665, 31790), (770, 27455), (850, 24871), (935, 22610), (950, 22253), (1045, 20230), (1190, 17765), (1309, 16150), (1330, 15895), (1445, 14630), (1463, 14450), (1615, 13090), (1870, 11305), (1925, 10982), (2023, 10450), (2090, 10115), (2261, 9350), (2618, 8075), (2890, 7315), (2926, 7225), (2975, 7106), (3179, 6650), (3230, 6545), (3325, 6358), (3553, 5950), (3850, 5491), (4046, 5225), (4522, 4675)]