11987805

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{887}}^1$

素因数の和:965

約数の個数: 32

約数和(自身を含む): 20715264

約数和(自身を除く): 8727459

約数列:

[1, 3, 5, 15, 17, 51, 53, 85, 159, 255, 265, 795, 887, 901, 2661, 2703, 4435, 4505, 13305, 13515, 15079, 45237, 47011, 75395, 141033, 226185, 235055, 705165, 799187, 2397561, 3995935, 11987805]

約数ペア:

[(1, 11987805), (3, 3995935), (5, 2397561), (15, 799187), (17, 705165), (51, 235055), (53, 226185), (85, 141033), (159, 75395), (255, 47011), (265, 45237), (795, 15079), (887, 13515), (901, 13305), (2661, 4505), (2703, 4435)]