19973478

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{1657}}^1$

素因数の和:1717

約数の個数: 48

約数和(自身を含む): 47631024

約数和(自身を除く): 27657546

約数列:

[1, 2, 3, 6, 7, 14, 21, 41, 42, 49, 82, 98, 123, 147, 246, 287, 294, 574, 861, 1657, 1722, 2009, 3314, 4018, 4971, 6027, 9942, 11599, 12054, 23198, 34797, 67937, 69594, 81193, 135874, 162386, 203811, 243579, 407622, 475559, 487158, 951118, 1426677, 2853354, 3328913, 6657826, 9986739, 19973478]

約数ペア:

[(1, 19973478), (2, 9986739), (3, 6657826), (6, 3328913), (7, 2853354), (14, 1426677), (21, 951118), (41, 487158), (42, 475559), (49, 407622), (82, 243579), (98, 203811), (123, 162386), (147, 135874), (246, 81193), (287, 69594), (294, 67937), (574, 34797), (861, 23198), (1657, 12054), (1722, 11599), (2009, 9942), (3314, 6027), (4018, 4971)]