28009515

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{4273}}^1$

素因数の和:4323

約数の個数: 32

約数和(自身を含む): 49236480

約数和(自身を除く): 21226965

約数列:

[1, 3, 5, 15, 19, 23, 57, 69, 95, 115, 285, 345, 437, 1311, 2185, 4273, 6555, 12819, 21365, 64095, 81187, 98279, 243561, 294837, 405935, 491395, 1217805, 1474185, 1867301, 5601903, 9336505, 28009515]

約数ペア:

[(1, 28009515), (3, 9336505), (5, 5601903), (15, 1867301), (19, 1474185), (23, 1217805), (57, 491395), (69, 405935), (95, 294837), (115, 243561), (285, 98279), (345, 81187), (437, 64095), (1311, 21365), (2185, 12819), (4273, 6555)]