21251386

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43019}}^1$

素因数の和:43053

約数の個数: 16

約数和(自身を含む): 36136800

約数和(自身を除く): 14885414

約数列:

[1, 2, 13, 19, 26, 38, 247, 494, 43019, 86038, 559247, 817361, 1118494, 1634722, 10625693, 21251386]

約数ペア:

[(1, 21251386), (2, 10625693), (13, 1634722), (19, 1118494), (26, 817361), (38, 559247), (247, 86038), (494, 43019)]