21016436

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{18307}}^1$

素因数の和:18359

約数の個数: 24

約数和(自身を含む): 43060416

約数和(自身を除く): 22043980

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 164, 287, 574, 1148, 18307, 36614, 73228, 128149, 256298, 512596, 750587, 1501174, 3002348, 5254109, 10508218, 21016436]

約数ペア:

[(1, 21016436), (2, 10508218), (4, 5254109), (7, 3002348), (14, 1501174), (28, 750587), (41, 512596), (82, 256298), (164, 128149), (287, 73228), (574, 36614), (1148, 18307)]