21217532

素因数分解:

$2^2\times 7^1\times {\mathrm{251}}^1\times {\mathrm{3019}}^1$

素因数の和:3281

約数の個数: 24

約数和(自身を含む): 42618240

約数和(自身を除く): 21400708

約数列:

[1, 2, 4, 7, 14, 28, 251, 502, 1004, 1757, 3019, 3514, 6038, 7028, 12076, 21133, 42266, 84532, 757769, 1515538, 3031076, 5304383, 10608766, 21217532]

約数ペア:

[(1, 21217532), (2, 10608766), (4, 5304383), (7, 3031076), (14, 1515538), (28, 757769), (251, 84532), (502, 42266), (1004, 21133), (1757, 12076), (3019, 7028), (3514, 6038)]