21802041

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{223}}^1$

素因数の和:323

約数の個数: 40

約数和(自身を含む): 35126784

約数和(自身を除く): 13324743

約数列:

[1, 3, 9, 17, 27, 51, 71, 81, 153, 213, 223, 459, 639, 669, 1207, 1377, 1917, 2007, 3621, 3791, 5751, 6021, 10863, 11373, 15833, 18063, 32589, 34119, 47499, 97767, 102357, 142497, 269161, 307071, 427491, 807483, 1282473, 2422449, 7267347, 21802041]

約数ペア:

[(1, 21802041), (3, 7267347), (9, 2422449), (17, 1282473), (27, 807483), (51, 427491), (71, 307071), (81, 269161), (153, 142497), (213, 102357), (223, 97767), (459, 47499), (639, 34119), (669, 32589), (1207, 18063), (1377, 15833), (1917, 11373), (2007, 10863), (3621, 6021), (3791, 5751)]