20613123

素因数分解:

$3^4\times {\mathrm{173}}^1\times {\mathrm{1471}}^1$

素因数の和:1656

約数の個数: 20

約数和(自身を含む): 30991488

約数和(自身を除く): 10378365

約数列:

[1, 3, 9, 27, 81, 173, 519, 1471, 1557, 4413, 4671, 13239, 14013, 39717, 119151, 254483, 763449, 2290347, 6871041, 20613123]

約数ペア:

[(1, 20613123), (3, 6871041), (9, 2290347), (27, 763449), (81, 254483), (173, 119151), (519, 39717), (1471, 14013), (1557, 13239), (4413, 4671)]