21897610

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1$

素因数の和:140

約数の個数: 96

約数和(自身を含む): 50232960

約数和(自身を除く): 28335350

約数列:

[1, 2, 5, 7, 10, 14, 23, 29, 35, 46, 49, 58, 67, 70, 98, 115, 134, 145, 161, 203, 230, 245, 290, 322, 335, 406, 469, 490, 667, 670, 805, 938, 1015, 1127, 1334, 1421, 1541, 1610, 1943, 2030, 2254, 2345, 2842, 3082, 3283, 3335, 3886, 4669, 4690, 5635, 6566, 6670, 7105, 7705, 9338, 9715, 10787, 11270, 13601, 14210, 15410, 16415, 19430, 21574, 23345, 27202, 32683, 32830, 44689, 46690, 53935, 65366, 68005, 75509, 89378, 95207, 107870, 136010, 151018, 163415, 190414, 223445, 312823, 326830, 377545, 446890, 476035, 625646, 755090, 952070, 1564115, 2189761, 3128230, 4379522, 10948805, 21897610]

約数ペア:

[(1, 21897610), (2, 10948805), (5, 4379522), (7, 3128230), (10, 2189761), (14, 1564115), (23, 952070), (29, 755090), (35, 625646), (46, 476035), (49, 446890), (58, 377545), (67, 326830), (70, 312823), (98, 223445), (115, 190414), (134, 163415), (145, 151018), (161, 136010), (203, 107870), (230, 95207), (245, 89378), (290, 75509), (322, 68005), (335, 65366), (406, 53935), (469, 46690), (490, 44689), (667, 32830), (670, 32683), (805, 27202), (938, 23345), (1015, 21574), (1127, 19430), (1334, 16415), (1421, 15410), (1541, 14210), (1610, 13601), (1943, 11270), (2030, 10787), (2254, 9715), (2345, 9338), (2842, 7705), (3082, 7105), (3283, 6670), (3335, 6566), (3886, 5635), (4669, 4690)]