17937213

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{251}}^1$

素因数の和:385

約数の個数: 32

約数和(自身を含む): 28449792

約数和(自身を除く): 10512579

約数列:

[1, 3, 7, 21, 41, 83, 123, 249, 251, 287, 581, 753, 861, 1743, 1757, 3403, 5271, 10209, 10291, 20833, 23821, 30873, 62499, 71463, 72037, 145831, 216111, 437493, 854153, 2562459, 5979071, 17937213]

約数ペア:

[(1, 17937213), (3, 5979071), (7, 2562459), (21, 854153), (41, 437493), (83, 216111), (123, 145831), (249, 72037), (251, 71463), (287, 62499), (581, 30873), (753, 23821), (861, 20833), (1743, 10291), (1757, 10209), (3403, 5271)]