21248552

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{1181}}^1$

素因数の和:1373

約数の個数: 32

約数和(自身を含む): 43190280

約数和(自身を除く): 21941728

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 173, 346, 692, 1181, 1384, 2249, 2362, 4498, 4724, 8996, 9448, 15353, 17992, 30706, 61412, 122824, 204313, 408626, 817252, 1634504, 2656069, 5312138, 10624276, 21248552]

約数ペア:

[(1, 21248552), (2, 10624276), (4, 5312138), (8, 2656069), (13, 1634504), (26, 817252), (52, 408626), (104, 204313), (173, 122824), (346, 61412), (692, 30706), (1181, 17992), (1384, 15353), (2249, 9448), (2362, 8996), (4498, 4724)]