21441608

素因数分解:

$2^3\times {\mathrm{67}}^1\times {\mathrm{109}}^1\times {\mathrm{367}}^1$

素因数の和:549

約数の個数: 32

約数和(自身を含む): 41289600

約数和(自身を除く): 19847992

約数列:

[1, 2, 4, 8, 67, 109, 134, 218, 268, 367, 436, 536, 734, 872, 1468, 2936, 7303, 14606, 24589, 29212, 40003, 49178, 58424, 80006, 98356, 160012, 196712, 320024, 2680201, 5360402, 10720804, 21441608]

約数ペア:

[(1, 21441608), (2, 10720804), (4, 5360402), (8, 2680201), (67, 320024), (109, 196712), (134, 160012), (218, 98356), (268, 80006), (367, 58424), (436, 49178), (536, 40003), (734, 29212), (872, 24589), (1468, 14606), (2936, 7303)]