20189901561

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{229}}^1\times {\mathrm{1277761}}^1$

素因数の和:1278016

約数の個数: 16

約数和(自身を含む): 28212984960

約数和(自身を除く): 8023083399

約数列:

[1, 3, 23, 69, 229, 687, 5267, 15801, 1277761, 3833283, 29388503, 88165509, 292607269, 877821807, 6729967187, 20189901561]

約数ペア:

[(1, 20189901561), (3, 6729967187), (23, 877821807), (69, 292607269), (229, 88165509), (687, 29388503), (5267, 3833283), (15801, 1277761)]