20065206

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{139}}^1\times {\mathrm{491}}^1$

素因数の和:649

約数の個数: 48

約数和(自身を含む): 47113920

約数和(自身を除く): 27048714

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 139, 147, 278, 294, 417, 491, 834, 973, 982, 1473, 1946, 2919, 2946, 3437, 5838, 6811, 6874, 10311, 13622, 20433, 20622, 24059, 40866, 48118, 68249, 72177, 136498, 144354, 204747, 409494, 477743, 955486, 1433229, 2866458, 3344201, 6688402, 10032603, 20065206]

約数ペア:

[(1, 20065206), (2, 10032603), (3, 6688402), (6, 3344201), (7, 2866458), (14, 1433229), (21, 955486), (42, 477743), (49, 409494), (98, 204747), (139, 144354), (147, 136498), (278, 72177), (294, 68249), (417, 48118), (491, 40866), (834, 24059), (973, 20622), (982, 20433), (1473, 13622), (1946, 10311), (2919, 6874), (2946, 6811), (3437, 5838)]