21289763

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{37}}^1\times {\mathrm{181}}^1$

素因数の和:263

約数の個数: 24

約数和(自身を含む): 25478544

約数和(自身を除く): 4188781

約数列:

[1, 11, 17, 37, 181, 187, 289, 407, 629, 1991, 3077, 3179, 6697, 6919, 10693, 33847, 52309, 73667, 113849, 117623, 575399, 1252339, 1935433, 21289763]

約数ペア:

[(1, 21289763), (11, 1935433), (17, 1252339), (37, 575399), (181, 117623), (187, 113849), (289, 73667), (407, 52309), (629, 33847), (1991, 10693), (3077, 6919), (3179, 6697)]