21421779

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{3271}}^1$

素因数の和:3370

約数の個数: 16

約数和(自身を含む): 29840640

約数和(自身を除く): 8418861

約数列:

[1, 3, 37, 59, 111, 177, 2183, 3271, 6549, 9813, 121027, 192989, 363081, 578967, 7140593, 21421779]

約数ペア:

[(1, 21421779), (3, 7140593), (37, 578967), (59, 363081), (111, 192989), (177, 121027), (2183, 9813), (3271, 6549)]