21312129

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{12893}}^1$

素因数の和:12944

約数の個数: 16

約数和(自身を含む): 30945600

約数和(自身を除く): 9633471

約数列:

[1, 3, 19, 29, 57, 87, 551, 1653, 12893, 38679, 244967, 373897, 734901, 1121691, 7104043, 21312129]

約数ペア:

[(1, 21312129), (3, 7104043), (19, 1121691), (29, 734901), (57, 373897), (87, 244967), (551, 38679), (1653, 12893)]