21389324

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{10343}}^1$

素因数の和:10405

約数の個数: 24

約数和(自身を含む): 41707008

約数和(自身を除く): 20317684

約数列:

[1, 2, 4, 11, 22, 44, 47, 94, 188, 517, 1034, 2068, 10343, 20686, 41372, 113773, 227546, 455092, 486121, 972242, 1944484, 5347331, 10694662, 21389324]

約数ペア:

[(1, 21389324), (2, 10694662), (4, 5347331), (11, 1944484), (22, 972242), (44, 486121), (47, 455092), (94, 227546), (188, 113773), (517, 41372), (1034, 20686), (2068, 10343)]