21843261

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{181}}^1$

素因数の和:274

約数の個数: 48

約数和(自身を含む): 36796032

約数和(自身を除く): 14952771

約数列:

[1, 3, 9, 11, 23, 33, 53, 69, 99, 159, 181, 207, 253, 477, 543, 583, 759, 1219, 1629, 1749, 1991, 2277, 3657, 4163, 5247, 5973, 9593, 10971, 12489, 13409, 17919, 28779, 37467, 40227, 45793, 86337, 105523, 120681, 137379, 220639, 316569, 412137, 661917, 949707, 1985751, 2427029, 7281087, 21843261]

約数ペア:

[(1, 21843261), (3, 7281087), (9, 2427029), (11, 1985751), (23, 949707), (33, 661917), (53, 412137), (69, 316569), (99, 220639), (159, 137379), (181, 120681), (207, 105523), (253, 86337), (477, 45793), (543, 40227), (583, 37467), (759, 28779), (1219, 17919), (1629, 13409), (1749, 12489), (1991, 10971), (2277, 9593), (3657, 5973), (4163, 5247)]