19915402016

素因数分解:

$2^5\times {\mathrm{997}}^1\times {\mathrm{624229}}^1$

素因数の和:625236

約数の個数: 24

約数和(自身を含む): 39247837020

約数和(自身を除く): 19332435004

約数列:

[1, 2, 4, 8, 16, 32, 997, 1994, 3988, 7976, 15952, 31904, 624229, 1248458, 2496916, 4993832, 9987664, 19975328, 622356313, 1244712626, 2489425252, 4978850504, 9957701008, 19915402016]

約数ペア:

[(1, 19915402016), (2, 9957701008), (4, 4978850504), (8, 2489425252), (16, 1244712626), (32, 622356313), (997, 19975328), (1994, 9987664), (3988, 4993832), (7976, 2496916), (15952, 1248458), (31904, 624229)]