21509158

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{73}}^1\times {\mathrm{227}}^1$

素因数の和:372

約数の個数: 32

約数和(自身を含む): 36443520

約数和(自身を除く): 14934362

約数列:

[1, 2, 11, 22, 59, 73, 118, 146, 227, 454, 649, 803, 1298, 1606, 2497, 4307, 4994, 8614, 13393, 16571, 26786, 33142, 47377, 94754, 147323, 182281, 294646, 364562, 977689, 1955378, 10754579, 21509158]

約数ペア:

[(1, 21509158), (2, 10754579), (11, 1955378), (22, 977689), (59, 364562), (73, 294646), (118, 182281), (146, 147323), (227, 94754), (454, 47377), (649, 33142), (803, 26786), (1298, 16571), (1606, 13393), (2497, 8614), (4307, 4994)]