20867565

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{33931}}^1$

素因数の和:33980

約数の個数: 16

約数和(自身を含む): 34203456

約数和(自身を除く): 13335891

約数列:

[1, 3, 5, 15, 41, 123, 205, 615, 33931, 101793, 169655, 508965, 1391171, 4173513, 6955855, 20867565]

約数ペア:

[(1, 20867565), (3, 6955855), (5, 4173513), (15, 1391171), (41, 508965), (123, 169655), (205, 101793), (615, 33931)]