21527836

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{2341}}^1$

素因数の和:2386

約数の個数: 36

約数和(自身を含む): 43608040

約数和(自身を除く): 22080204

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 121, 209, 242, 418, 484, 836, 2299, 2341, 4598, 4682, 9196, 9364, 25751, 44479, 51502, 88958, 103004, 177916, 283261, 489269, 566522, 978538, 1133044, 1957076, 5381959, 10763918, 21527836]

約数ペア:

[(1, 21527836), (2, 10763918), (4, 5381959), (11, 1957076), (19, 1133044), (22, 978538), (38, 566522), (44, 489269), (76, 283261), (121, 177916), (209, 103004), (242, 88958), (418, 51502), (484, 44479), (836, 25751), (2299, 9364), (2341, 9196), (4598, 4682)]