19659812

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{197}}^1\times {\mathrm{409}}^1$

素因数の和:671

約数の個数: 24

約数和(自身を含む): 35232120

約数和(自身を除く): 15572308

約数列:

[1, 2, 4, 61, 122, 197, 244, 394, 409, 788, 818, 1636, 12017, 24034, 24949, 48068, 49898, 80573, 99796, 161146, 322292, 4914953, 9829906, 19659812]

約数ペア:

[(1, 19659812), (2, 9829906), (4, 4914953), (61, 322292), (122, 161146), (197, 99796), (244, 80573), (394, 49898), (409, 48068), (788, 24949), (818, 24034), (1636, 12017)]