21006454

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{379}}^1$

素因数の和:532

約数の個数: 32

約数和(自身を含む): 37428480

約数和(自身を除く): 16422026

約数列:

[1, 2, 7, 14, 37, 74, 107, 214, 259, 379, 518, 749, 758, 1498, 2653, 3959, 5306, 7918, 14023, 27713, 28046, 40553, 55426, 81106, 98161, 196322, 283871, 567742, 1500461, 3000922, 10503227, 21006454]

約数ペア:

[(1, 21006454), (2, 10503227), (7, 3000922), (14, 1500461), (37, 567742), (74, 283871), (107, 196322), (214, 98161), (259, 81106), (379, 55426), (518, 40553), (749, 28046), (758, 27713), (1498, 14023), (2653, 7918), (3959, 5306)]