51253881

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{601}}^1$

素因数の和:773

約数の個数: 32

約数和(自身を含む): 81371136

約数和(自身を除く): 30117255

約数列:

[1, 3, 7, 21, 31, 93, 131, 217, 393, 601, 651, 917, 1803, 2751, 4061, 4207, 12183, 12621, 18631, 28427, 55893, 78731, 85281, 130417, 236193, 391251, 551117, 1653351, 2440661, 7321983, 17084627, 51253881]

約数ペア:

[(1, 51253881), (3, 17084627), (7, 7321983), (21, 2440661), (31, 1653351), (93, 551117), (131, 391251), (217, 236193), (393, 130417), (601, 85281), (651, 78731), (917, 55893), (1803, 28427), (2751, 18631), (4061, 12621), (4207, 12183)]