21007910

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{27283}}^1$

素因数の和:27308

約数の個数: 32

約数和(自身を含む): 47146752

約数和(自身を除く): 26138842

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770, 27283, 54566, 136415, 190981, 272830, 300113, 381962, 600226, 954905, 1500565, 1909810, 2100791, 3001130, 4201582, 10503955, 21007910]

約数ペア:

[(1, 21007910), (2, 10503955), (5, 4201582), (7, 3001130), (10, 2100791), (11, 1909810), (14, 1500565), (22, 954905), (35, 600226), (55, 381962), (70, 300113), (77, 272830), (110, 190981), (154, 136415), (385, 54566), (770, 27283)]