20478486

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{3559}}^1$

素因数の和:3708

約数の個数: 32

約数和(自身を含む): 47162880

約数和(自身を除く): 26684394

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 137, 274, 411, 822, 959, 1918, 2877, 3559, 5754, 7118, 10677, 21354, 24913, 49826, 74739, 149478, 487583, 975166, 1462749, 2925498, 3413081, 6826162, 10239243, 20478486]

約数ペア:

[(1, 20478486), (2, 10239243), (3, 6826162), (6, 3413081), (7, 2925498), (14, 1462749), (21, 975166), (42, 487583), (137, 149478), (274, 74739), (411, 49826), (822, 24913), (959, 21354), (1918, 10677), (2877, 7118), (3559, 5754)]