21763775

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{2729}}^1$

素因数の和:2779

約数の個数: 24

約数和(自身を含む): 30466800

約数和(自身を除く): 8703025

約数列:

[1, 5, 11, 25, 29, 55, 145, 275, 319, 725, 1595, 2729, 7975, 13645, 30019, 68225, 79141, 150095, 395705, 750475, 870551, 1978525, 4352755, 21763775]

約数ペア:

[(1, 21763775), (5, 4352755), (11, 1978525), (25, 870551), (29, 750475), (55, 395705), (145, 150095), (275, 79141), (319, 68225), (725, 30019), (1595, 13645), (2729, 7975)]