20163978

素因数分解:

$2^1\times 3^4\times {\mathrm{19}}^1\times {\mathrm{6551}}^1$

素因数の和:6584

約数の個数: 40

約数和(自身を含む): 47567520

約数和(自身を除く): 27403542

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 38, 54, 57, 81, 114, 162, 171, 342, 513, 1026, 1539, 3078, 6551, 13102, 19653, 39306, 58959, 117918, 124469, 176877, 248938, 353754, 373407, 530631, 746814, 1061262, 1120221, 2240442, 3360663, 6721326, 10081989, 20163978]

約数ペア:

[(1, 20163978), (2, 10081989), (3, 6721326), (6, 3360663), (9, 2240442), (18, 1120221), (19, 1061262), (27, 746814), (38, 530631), (54, 373407), (57, 353754), (81, 248938), (114, 176877), (162, 124469), (171, 117918), (342, 58959), (513, 39306), (1026, 19653), (1539, 13102), (3078, 6551)]