21705752

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{2341}}^1$

素因数の和:2427

約数の個数: 32

約数和(自身を含む): 43561200

約数和(自身を除く): 21855448

約数列:

[1, 2, 4, 8, 19, 38, 61, 76, 122, 152, 244, 488, 1159, 2318, 2341, 4636, 4682, 9272, 9364, 18728, 44479, 88958, 142801, 177916, 285602, 355832, 571204, 1142408, 2713219, 5426438, 10852876, 21705752]

約数ペア:

[(1, 21705752), (2, 10852876), (4, 5426438), (8, 2713219), (19, 1142408), (38, 571204), (61, 355832), (76, 285602), (122, 177916), (152, 142801), (244, 88958), (488, 44479), (1159, 18728), (2318, 9364), (2341, 9272), (4636, 4682)]