21121454

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{6871}}^1$

素因数の和:6955

約数の個数: 16

約数和(自身を含む): 33397920

約数和(自身を除く): 12276466

約数列:

[1, 2, 29, 53, 58, 106, 1537, 3074, 6871, 13742, 199259, 364163, 398518, 728326, 10560727, 21121454]

約数ペア:

[(1, 21121454), (2, 10560727), (29, 728326), (53, 398518), (58, 364163), (106, 199259), (1537, 13742), (3074, 6871)]