20857506

素因数分解:

$2^1\times 3^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1\times {\mathrm{281}}^1$

素因数の和:514

約数の個数: 32

約数和(自身を含む): 42638400

約数和(自身を除く): 21780894

約数列:

[1, 2, 3, 6, 89, 139, 178, 267, 278, 281, 417, 534, 562, 834, 843, 1686, 12371, 24742, 25009, 37113, 39059, 50018, 74226, 75027, 78118, 117177, 150054, 234354, 3476251, 6952502, 10428753, 20857506]

約数ペア:

[(1, 20857506), (2, 10428753), (3, 6952502), (6, 3476251), (89, 234354), (139, 150054), (178, 117177), (267, 78118), (278, 75027), (281, 74226), (417, 50018), (534, 39059), (562, 37113), (834, 25009), (843, 24742), (1686, 12371)]