201916287

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{157}}^1$

素因数の和:317

約数の個数: 64

約数和(自身を含む): 333696000

約数和(自身を除く): 131779713

約数列:

[1, 3, 9, 19, 23, 27, 57, 69, 109, 157, 171, 207, 327, 437, 471, 513, 621, 981, 1311, 1413, 2071, 2507, 2943, 2983, 3611, 3933, 4239, 6213, 7521, 8949, 10833, 11799, 17113, 18639, 22563, 26847, 32499, 47633, 51339, 55917, 67689, 68609, 80541, 97497, 142899, 154017, 205827, 325147, 393599, 428697, 462051, 617481, 975441, 1180797, 1286091, 1852443, 2926323, 3542391, 7478381, 8778969, 10627173, 22435143, 67305429, 201916287]

約数ペア:

[(1, 201916287), (3, 67305429), (9, 22435143), (19, 10627173), (23, 8778969), (27, 7478381), (57, 3542391), (69, 2926323), (109, 1852443), (157, 1286091), (171, 1180797), (207, 975441), (327, 617481), (437, 462051), (471, 428697), (513, 393599), (621, 325147), (981, 205827), (1311, 154017), (1413, 142899), (2071, 97497), (2507, 80541), (2943, 68609), (2983, 67689), (3611, 55917), (3933, 51339), (4239, 47633), (6213, 32499), (7521, 26847), (8949, 22563), (10833, 18639), (11799, 17113)]