21474639

素因数分解:

$3^5\times {\mathrm{67}}^1\times {\mathrm{1319}}^1$

素因数の和:1401

約数の個数: 24

約数和(自身を含む): 32672640

約数和(自身を除く): 11198001

約数列:

[1, 3, 9, 27, 67, 81, 201, 243, 603, 1319, 1809, 3957, 5427, 11871, 16281, 35613, 88373, 106839, 265119, 320517, 795357, 2386071, 7158213, 21474639]

約数ペア:

[(1, 21474639), (3, 7158213), (9, 2386071), (27, 795357), (67, 320517), (81, 265119), (201, 106839), (243, 88373), (603, 35613), (1319, 16281), (1809, 11871), (3957, 5427)]