19278928

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{19753}}^1$

素因数の和:19822

約数の個数: 20

約数和(自身を含む): 37967188

約数和(自身を除く): 18688260

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 19753, 39506, 79012, 158024, 316048, 1204933, 2409866, 4819732, 9639464, 19278928]

約数ペア:

[(1, 19278928), (2, 9639464), (4, 4819732), (8, 2409866), (16, 1204933), (61, 316048), (122, 158024), (244, 79012), (488, 39506), (976, 19753)]