888906991

素因数分解:

$7^2\times {\mathrm{89}}^1\times {\mathrm{317}}^1\times {\mathrm{643}}^1$

素因数の和:1063

約数の個数: 24

約数和(自身を含む): 1050582960

約数和(自身を除く): 161675969

約数列:

[1, 7, 49, 89, 317, 623, 643, 2219, 4361, 4501, 15533, 28213, 31507, 57227, 197491, 203831, 400589, 1382437, 1426817, 2804123, 9987719, 18140959, 126986713, 888906991]

約数ペア:

[(1, 888906991), (7, 126986713), (49, 18140959), (89, 9987719), (317, 2804123), (623, 1426817), (643, 1382437), (2219, 400589), (4361, 203831), (4501, 197491), (15533, 57227), (28213, 31507)]