21138306

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{71899}}^1$

素因数の和:71918

約数の個数: 24

約数和(自身を含む): 49179600

約数和(自身を除く): 28041294

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 147, 294, 71899, 143798, 215697, 431394, 503293, 1006586, 1509879, 3019758, 3523051, 7046102, 10569153, 21138306]

約数ペア:

[(1, 21138306), (2, 10569153), (3, 7046102), (6, 3523051), (7, 3019758), (14, 1509879), (21, 1006586), (42, 503293), (49, 431394), (98, 215697), (147, 143798), (294, 71899)]