31230003

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{12497}}^1$

素因数の和:12531

約数の個数: 24

約数和(自身を含む): 51291792

約数和(自身を除く): 20061789

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 357, 833, 2499, 12497, 37491, 87479, 212449, 262437, 612353, 637347, 1487143, 1837059, 4461429, 10410001, 31230003]

約数ペア:

[(1, 31230003), (3, 10410001), (7, 4461429), (17, 1837059), (21, 1487143), (49, 637347), (51, 612353), (119, 262437), (147, 212449), (357, 87479), (833, 37491), (2499, 12497)]