20180223

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{733}}^1$

素因数の和:788

約数の個数: 48

約数和(自身を含む): 36641280

約数和(自身を除く): 16461057

約数列:

[1, 3, 7, 9, 19, 21, 23, 57, 63, 69, 133, 161, 171, 207, 399, 437, 483, 733, 1197, 1311, 1449, 2199, 3059, 3933, 5131, 6597, 9177, 13927, 15393, 16859, 27531, 41781, 46179, 50577, 97489, 118013, 125343, 151731, 292467, 320321, 354039, 877401, 960963, 1062117, 2242247, 2882889, 6726741, 20180223]

約数ペア:

[(1, 20180223), (3, 6726741), (7, 2882889), (9, 2242247), (19, 1062117), (21, 960963), (23, 877401), (57, 354039), (63, 320321), (69, 292467), (133, 151731), (161, 125343), (171, 118013), (207, 97489), (399, 50577), (437, 46179), (483, 41781), (733, 27531), (1197, 16859), (1311, 15393), (1449, 13927), (2199, 9177), (3059, 6597), (3933, 5131)]