21863547

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1$

素因数の和:177

約数の個数: 64

約数和(自身を含む): 38016000

約数和(自身を除く): 16152453

約数列:

[1, 3, 9, 17, 19, 23, 27, 51, 57, 69, 109, 153, 171, 207, 323, 327, 391, 437, 459, 513, 621, 969, 981, 1173, 1311, 1853, 2071, 2507, 2907, 2943, 3519, 3933, 5559, 6213, 7429, 7521, 8721, 10557, 11799, 16677, 18639, 22287, 22563, 35207, 42619, 47633, 50031, 55917, 66861, 67689, 105621, 127857, 142899, 200583, 316863, 383571, 428697, 809761, 950589, 1150713, 1286091, 2429283, 7287849, 21863547]

約数ペア:

[(1, 21863547), (3, 7287849), (9, 2429283), (17, 1286091), (19, 1150713), (23, 950589), (27, 809761), (51, 428697), (57, 383571), (69, 316863), (109, 200583), (153, 142899), (171, 127857), (207, 105621), (323, 67689), (327, 66861), (391, 55917), (437, 50031), (459, 47633), (513, 42619), (621, 35207), (969, 22563), (981, 22287), (1173, 18639), (1311, 16677), (1853, 11799), (2071, 10557), (2507, 8721), (2907, 7521), (2943, 7429), (3519, 6213), (3933, 5559)]