20155158

素因数分解:

$2^1\times 3^2\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{571}}^1$

素因数の和:669

約数の個数: 48

約数和(自身を含む): 45776016

約数和(自身を除く): 25620858

約数列:

[1, 2, 3, 6, 9, 18, 37, 53, 74, 106, 111, 159, 222, 318, 333, 477, 571, 666, 954, 1142, 1713, 1961, 3426, 3922, 5139, 5883, 10278, 11766, 17649, 21127, 30263, 35298, 42254, 60526, 63381, 90789, 126762, 181578, 190143, 272367, 380286, 544734, 1119731, 2239462, 3359193, 6718386, 10077579, 20155158]

約数ペア:

[(1, 20155158), (2, 10077579), (3, 6718386), (6, 3359193), (9, 2239462), (18, 1119731), (37, 544734), (53, 380286), (74, 272367), (106, 190143), (111, 181578), (159, 126762), (222, 90789), (318, 63381), (333, 60526), (477, 42254), (571, 35298), (666, 30263), (954, 21127), (1142, 17649), (1713, 11766), (1961, 10278), (3426, 5883), (3922, 5139)]