21321573

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{78101}}^1$

素因数の和:78124

約数の個数: 16

約数和(自身を含む): 34989696

約数和(自身を除く): 13668123

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 78101, 234303, 546707, 1015313, 1640121, 3045939, 7107191, 21321573]

約数ペア:

[(1, 21321573), (3, 7107191), (7, 3045939), (13, 1640121), (21, 1015313), (39, 546707), (91, 234303), (273, 78101)]