20199453921

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{4723}}^1$

素因数の和:4923

約数の個数: 64

約数和(自身を含む): 31999242240

約数和(自身を除く): 11799788319

約数列:

[1, 3, 9, 23, 27, 69, 71, 97, 207, 213, 291, 621, 639, 873, 1633, 1917, 2231, 2619, 4723, 4899, 6693, 6887, 14169, 14697, 20079, 20661, 42507, 44091, 60237, 61983, 108629, 127521, 158401, 185949, 325887, 335333, 458131, 475203, 977661, 1005999, 1374393, 1425609, 2932983, 3017997, 4123179, 4276827, 7712659, 9053991, 10537013, 12369537, 23137977, 31611039, 32527301, 69413931, 94833117, 97581903, 208241793, 284499351, 292745709, 748127923, 878237127, 2244383769, 6733151307, 20199453921]

約数ペア:

[(1, 20199453921), (3, 6733151307), (9, 2244383769), (23, 878237127), (27, 748127923), (69, 292745709), (71, 284499351), (97, 208241793), (207, 97581903), (213, 94833117), (291, 69413931), (621, 32527301), (639, 31611039), (873, 23137977), (1633, 12369537), (1917, 10537013), (2231, 9053991), (2619, 7712659), (4723, 4276827), (4899, 4123179), (6693, 3017997), (6887, 2932983), (14169, 1425609), (14697, 1374393), (20079, 1005999), (20661, 977661), (42507, 475203), (44091, 458131), (60237, 335333), (61983, 325887), (108629, 185949), (127521, 158401)]