20876145

素因数分解:

$3^1\times 5^1\times {\mathrm{79}}^2\times {\mathrm{223}}^1$

素因数の和:389

約数の個数: 24

約数和(自身を含む): 33981696

約数和(自身を除く): 13105551

約数列:

[1, 3, 5, 15, 79, 223, 237, 395, 669, 1115, 1185, 3345, 6241, 17617, 18723, 31205, 52851, 88085, 93615, 264255, 1391743, 4175229, 6958715, 20876145]

約数ペア:

[(1, 20876145), (3, 6958715), (5, 4175229), (15, 1391743), (79, 264255), (223, 93615), (237, 88085), (395, 52851), (669, 31205), (1115, 18723), (1185, 17617), (3345, 6241)]