18221528

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{241}}^1\times {\mathrm{727}}^1$

素因数の和:987

約数の個数: 32

約数和(自身を含む): 36996960

約数和(自身を除く): 18775432

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 241, 482, 727, 964, 1454, 1928, 2908, 3133, 5816, 6266, 9451, 12532, 18902, 25064, 37804, 75608, 175207, 350414, 700828, 1401656, 2277691, 4555382, 9110764, 18221528]

約数ペア:

[(1, 18221528), (2, 9110764), (4, 4555382), (8, 2277691), (13, 1401656), (26, 700828), (52, 350414), (104, 175207), (241, 75608), (482, 37804), (727, 25064), (964, 18902), (1454, 12532), (1928, 9451), (2908, 6266), (3133, 5816)]