21318015

素因数分解:

$3^1\times 5^1\times {\mathrm{113}}^1\times {\mathrm{12577}}^1$

素因数の和:12698

約数の個数: 16

約数和(自身を含む): 34413408

約数和(自身を除く): 13095393

約数列:

[1, 3, 5, 15, 113, 339, 565, 1695, 12577, 37731, 62885, 188655, 1421201, 4263603, 7106005, 21318015]

約数ペア:

[(1, 21318015), (3, 7106005), (5, 4263603), (15, 1421201), (113, 188655), (339, 62885), (565, 37731), (1695, 12577)]