21999461252

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{439}}^1\times {\mathrm{736951}}^1$

素因数の和:737411

約数の個数: 24

約数和(自身を含む): 40856618880

約数和(自身を除く): 18857157628

約数列:

[1, 2, 4, 17, 34, 68, 439, 878, 1756, 7463, 14926, 29852, 736951, 1473902, 2947804, 12528167, 25056334, 50112668, 323521489, 647042978, 1294085956, 5499865313, 10999730626, 21999461252]

約数ペア:

[(1, 21999461252), (2, 10999730626), (4, 5499865313), (17, 1294085956), (34, 647042978), (68, 323521489), (439, 50112668), (878, 25056334), (1756, 12528167), (7463, 2947804), (14926, 1473902), (29852, 736951)]