19619402

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{21751}}^1$

素因数の和:21805

約数の個数: 16

約数和(自身を含む): 32889024

約数和(自身を除く): 13269622

約数列:

[1, 2, 11, 22, 41, 82, 451, 902, 21751, 43502, 239261, 478522, 891791, 1783582, 9809701, 19619402]

約数ペア:

[(1, 19619402), (2, 9809701), (11, 1783582), (22, 891791), (41, 478522), (82, 239261), (451, 43502), (902, 21751)]