20809339995

素因数分解:

$3^1\times 5^1\times {\mathrm{20543}}^1\times {\mathrm{67531}}^1$

素因数の和:88082

約数の個数: 16

約数和(自身を含む): 33297057792

約数和(自身を除く): 12487717797

約数列:

[1, 3, 5, 15, 20543, 61629, 67531, 102715, 202593, 308145, 337655, 1012965, 1387289333, 4161867999, 6936446665, 20809339995]

約数ペア:

[(1, 20809339995), (3, 6936446665), (5, 4161867999), (15, 1387289333), (20543, 1012965), (61629, 337655), (67531, 308145), (102715, 202593)]