13165821

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{191}}^1$

素因数の和:263

約数の個数: 40

約数和(自身を含む): 21187584

約数和(自身を除く): 8021763

約数列:

[1, 3, 9, 23, 27, 37, 69, 81, 111, 191, 207, 333, 573, 621, 851, 999, 1719, 1863, 2553, 2997, 4393, 5157, 7067, 7659, 13179, 15471, 21201, 22977, 39537, 63603, 68931, 118611, 162541, 190809, 355833, 487623, 572427, 1462869, 4388607, 13165821]

約数ペア:

[(1, 13165821), (3, 4388607), (9, 1462869), (23, 572427), (27, 487623), (37, 355833), (69, 190809), (81, 162541), (111, 118611), (191, 68931), (207, 63603), (333, 39537), (573, 22977), (621, 21201), (851, 15471), (999, 13179), (1719, 7659), (1863, 7067), (2553, 5157), (2997, 4393)]