20984454

素因数分解:

$2^1\times 3^3\times {\mathrm{79}}^1\times {\mathrm{4919}}^1$

素因数の和:5009

約数の個数: 32

約数和(自身を含む): 47232000

約数和(自身を除く): 26247546

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 79, 158, 237, 474, 711, 1422, 2133, 4266, 4919, 9838, 14757, 29514, 44271, 88542, 132813, 265626, 388601, 777202, 1165803, 2331606, 3497409, 6994818, 10492227, 20984454]

約数ペア:

[(1, 20984454), (2, 10492227), (3, 6994818), (6, 3497409), (9, 2331606), (18, 1165803), (27, 777202), (54, 388601), (79, 265626), (158, 132813), (237, 88542), (474, 44271), (711, 29514), (1422, 14757), (2133, 9838), (4266, 4919)]