21019154

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{4673}}^1$

素因数の和:4861

約数の個数: 16

約数和(自身を含む): 34157592

約数和(自身を除く): 13138438

約数列:

[1, 2, 13, 26, 173, 346, 2249, 4498, 4673, 9346, 60749, 121498, 808429, 1616858, 10509577, 21019154]

約数ペア:

[(1, 21019154), (2, 10509577), (13, 1616858), (26, 808429), (173, 121498), (346, 60749), (2249, 9346), (4498, 4673)]