21234883820

素因数分解:

$2^2\times 5^1\times {\mathrm{15859}}^1\times {\mathrm{66949}}^1$

素因数の和:82817

約数の個数: 24

約数和(自身を含む): 44596734000

約数和(自身を除く): 23361850180

約数列:

[1, 2, 4, 5, 10, 20, 15859, 31718, 63436, 66949, 79295, 133898, 158590, 267796, 317180, 334745, 669490, 1338980, 1061744191, 2123488382, 4246976764, 5308720955, 10617441910, 21234883820]

約数ペア:

[(1, 21234883820), (2, 10617441910), (4, 5308720955), (5, 4246976764), (10, 2123488382), (20, 1061744191), (15859, 1338980), (31718, 669490), (63436, 334745), (66949, 317180), (79295, 267796), (133898, 158590)]