20974148

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{3079}}^1$

素因数の和:3227

約数の個数: 24

約数和(自身を含む): 39842880

約数和(自身を除く): 18868732

約数列:

[1, 2, 4, 13, 26, 52, 131, 262, 524, 1703, 3079, 3406, 6158, 6812, 12316, 40027, 80054, 160108, 403349, 806698, 1613396, 5243537, 10487074, 20974148]

約数ペア:

[(1, 20974148), (2, 10487074), (4, 5243537), (13, 1613396), (26, 806698), (52, 403349), (131, 160108), (262, 80054), (524, 40027), (1703, 12316), (3079, 6812), (3406, 6158)]