21056724

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^2\times {\mathrm{3461}}^1$

素因数の和:3497

約数の個数: 54

約数和(自身を含む): 57652686

約数和(自身を除く): 36595962

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 169, 234, 338, 468, 507, 676, 1014, 1521, 2028, 3042, 3461, 6084, 6922, 10383, 13844, 20766, 31149, 41532, 44993, 62298, 89986, 124596, 134979, 179972, 269958, 404937, 539916, 584909, 809874, 1169818, 1619748, 1754727, 2339636, 3509454, 5264181, 7018908, 10528362, 21056724]

約数ペア:

[(1, 21056724), (2, 10528362), (3, 7018908), (4, 5264181), (6, 3509454), (9, 2339636), (12, 1754727), (13, 1619748), (18, 1169818), (26, 809874), (36, 584909), (39, 539916), (52, 404937), (78, 269958), (117, 179972), (156, 134979), (169, 124596), (234, 89986), (338, 62298), (468, 44993), (507, 41532), (676, 31149), (1014, 20766), (1521, 13844), (2028, 10383), (3042, 6922), (3461, 6084)]