21005686

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{2143}}^1$

素因数の和:2200

約数の個数: 24

約数和(自身を含む): 35311680

約数和(自身を除く): 14305994

約数列:

[1, 2, 13, 26, 29, 58, 169, 338, 377, 754, 2143, 4286, 4901, 9802, 27859, 55718, 62147, 124294, 362167, 724334, 807911, 1615822, 10502843, 21005686]

約数ペア:

[(1, 21005686), (2, 10502843), (13, 1615822), (26, 807911), (29, 724334), (58, 362167), (169, 124294), (338, 62147), (377, 55718), (754, 27859), (2143, 9802), (4286, 4901)]