20887573

素因数分解:

$7^2\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{281}}^1$

素因数の和:373

約数の個数: 24

約数和(自身を含む): 25654104

約数和(自身を除く): 4766531

約数列:

[1, 7, 37, 41, 49, 259, 281, 287, 1517, 1813, 1967, 2009, 10397, 10619, 11521, 13769, 72779, 74333, 80647, 426277, 509453, 564529, 2983939, 20887573]

約数ペア:

[(1, 20887573), (7, 2983939), (37, 564529), (41, 509453), (49, 426277), (259, 80647), (281, 74333), (287, 72779), (1517, 13769), (1813, 11521), (1967, 10619), (2009, 10397)]