21078195

素因数分解:

$3^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{13913}}^1$

素因数の和:14022

約数の個数: 16

約数和(自身を含む): 34061472

約数和(自身を除く): 12983277

約数列:

[1, 3, 5, 15, 101, 303, 505, 1515, 13913, 41739, 69565, 208695, 1405213, 4215639, 7026065, 21078195]

約数ペア:

[(1, 21078195), (3, 7026065), (5, 4215639), (15, 1405213), (101, 208695), (303, 69565), (505, 41739), (1515, 13913)]