210974995

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{1607}}^1$

素因数の和:1672

約数の個数: 48

約数和(自身を含む): 328495104

約数和(自身を除く): 117520109

約数列:

[1, 5, 7, 11, 31, 35, 55, 77, 121, 155, 217, 341, 385, 605, 847, 1085, 1607, 1705, 2387, 3751, 4235, 8035, 11249, 11935, 17677, 18755, 26257, 49817, 56245, 88385, 123739, 131285, 194447, 249085, 348719, 547987, 618695, 972235, 1361129, 1743595, 2739935, 3835909, 6027857, 6805645, 19179545, 30139285, 42194999, 210974995]

約数ペア:

[(1, 210974995), (5, 42194999), (7, 30139285), (11, 19179545), (31, 6805645), (35, 6027857), (55, 3835909), (77, 2739935), (121, 1743595), (155, 1361129), (217, 972235), (341, 618695), (385, 547987), (605, 348719), (847, 249085), (1085, 194447), (1607, 131285), (1705, 123739), (2387, 88385), (3751, 56245), (4235, 49817), (8035, 26257), (11249, 18755), (11935, 17677)]