21840496

素因数分解:

$2^4\times {\mathrm{569}}^1\times {\mathrm{2399}}^1$

素因数の和:2976

約数の個数: 20

約数和(自身を含む): 42408000

約数和(自身を除く): 20567504

約数列:

[1, 2, 4, 8, 16, 569, 1138, 2276, 2399, 4552, 4798, 9104, 9596, 19192, 38384, 1365031, 2730062, 5460124, 10920248, 21840496]

約数ペア:

[(1, 21840496), (2, 10920248), (4, 5460124), (8, 2730062), (16, 1365031), (569, 38384), (1138, 19192), (2276, 9596), (2399, 9104), (4552, 4798)]