21586278

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{2663}}^1$

素因数の和:2868

約数の個数: 32

約数和(自身を含む): 49614336

約数和(自身を除く): 28028058

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 193, 386, 579, 1158, 1351, 2663, 2702, 4053, 5326, 7989, 8106, 15978, 18641, 37282, 55923, 111846, 513959, 1027918, 1541877, 3083754, 3597713, 7195426, 10793139, 21586278]

約数ペア:

[(1, 21586278), (2, 10793139), (3, 7195426), (6, 3597713), (7, 3083754), (14, 1541877), (21, 1027918), (42, 513959), (193, 111846), (386, 55923), (579, 37282), (1158, 18641), (1351, 15978), (2663, 8106), (2702, 7989), (4053, 5326)]