21154210

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{331}}^1$

素因数の和:439

約数の個数: 64

約数和(自身を含む): 48190464

約数和(自身を除く): 27036254

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 83, 110, 154, 166, 331, 385, 415, 581, 662, 770, 830, 913, 1162, 1655, 1826, 2317, 2905, 3310, 3641, 4565, 4634, 5810, 6391, 7282, 9130, 11585, 12782, 18205, 23170, 25487, 27473, 31955, 36410, 50974, 54946, 63910, 127435, 137365, 192311, 254870, 274730, 302203, 384622, 604406, 961555, 1511015, 1923110, 2115421, 3022030, 4230842, 10577105, 21154210]

約数ペア:

[(1, 21154210), (2, 10577105), (5, 4230842), (7, 3022030), (10, 2115421), (11, 1923110), (14, 1511015), (22, 961555), (35, 604406), (55, 384622), (70, 302203), (77, 274730), (83, 254870), (110, 192311), (154, 137365), (166, 127435), (331, 63910), (385, 54946), (415, 50974), (581, 36410), (662, 31955), (770, 27473), (830, 25487), (913, 23170), (1162, 18205), (1655, 12782), (1826, 11585), (2317, 9130), (2905, 7282), (3310, 6391), (3641, 5810), (4565, 4634)]