20893587

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{431}}^1$

素因数の和:571

約数の個数: 32

約数和(自身を含む): 33094656

約数和(自身を除く): 12201069

約数列:

[1, 3, 11, 13, 33, 39, 113, 143, 339, 429, 431, 1243, 1293, 1469, 3729, 4407, 4741, 5603, 14223, 16159, 16809, 48477, 48703, 61633, 146109, 184899, 535733, 633139, 1607199, 1899417, 6964529, 20893587]

約数ペア:

[(1, 20893587), (3, 6964529), (11, 1899417), (13, 1607199), (33, 633139), (39, 535733), (113, 184899), (143, 146109), (339, 61633), (429, 48703), (431, 48477), (1243, 16809), (1293, 16159), (1469, 14223), (3729, 5603), (4407, 4741)]