20097609

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{541}}^1$

素因数の和:641

約数の個数: 32

約数和(自身を含む): 32259840

約数和(自身を除く): 12162231

約数列:

[1, 3, 7, 21, 29, 61, 87, 183, 203, 427, 541, 609, 1281, 1623, 1769, 3787, 5307, 11361, 12383, 15689, 33001, 37149, 47067, 99003, 109823, 231007, 329469, 693021, 957029, 2871087, 6699203, 20097609]

約数ペア:

[(1, 20097609), (3, 6699203), (7, 2871087), (21, 957029), (29, 693021), (61, 329469), (87, 231007), (183, 109823), (203, 99003), (427, 47067), (541, 37149), (609, 33001), (1281, 15689), (1623, 12383), (1769, 11361), (3787, 5307)]