21200836

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{2243}}^1$

素因数の和:2403

約数の個数: 24

約数和(自身を含む): 39584160

約数和(自身を除く): 18383324

約数列:

[1, 2, 4, 17, 34, 68, 139, 278, 556, 2243, 2363, 4486, 4726, 8972, 9452, 38131, 76262, 152524, 311777, 623554, 1247108, 5300209, 10600418, 21200836]

約数ペア:

[(1, 21200836), (2, 10600418), (4, 5300209), (17, 1247108), (34, 623554), (68, 311777), (139, 152524), (278, 76262), (556, 38131), (2243, 9452), (2363, 8972), (4486, 4726)]