20669295

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{331}}^1$

素因数の和:543

約数の個数: 32

約数和(自身を含む): 34804224

約数和(自身を除く): 14134929

約数列:

[1, 3, 5, 15, 23, 69, 115, 181, 331, 345, 543, 905, 993, 1655, 2715, 4163, 4965, 7613, 12489, 20815, 22839, 38065, 59911, 62445, 114195, 179733, 299555, 898665, 1377953, 4133859, 6889765, 20669295]

約数ペア:

[(1, 20669295), (3, 6889765), (5, 4133859), (15, 1377953), (23, 898665), (69, 299555), (115, 179733), (181, 114195), (331, 62445), (345, 59911), (543, 38065), (905, 22839), (993, 20815), (1655, 12489), (2715, 7613), (4163, 4965)]