20426835

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1$

素因数の和:228

約数の個数: 64

約数和(自身を含む): 39191040

約数和(自身を除く): 18764205

約数列:

[1, 3, 5, 11, 13, 15, 33, 39, 55, 65, 89, 107, 143, 165, 195, 267, 321, 429, 445, 535, 715, 979, 1157, 1177, 1335, 1391, 1605, 2145, 2937, 3471, 3531, 4173, 4895, 5785, 5885, 6955, 9523, 12727, 14685, 15301, 17355, 17655, 20865, 28569, 38181, 45903, 47615, 63635, 76505, 104753, 123799, 142845, 190905, 229515, 314259, 371397, 523765, 618995, 1361789, 1571295, 1856985, 4085367, 6808945, 20426835]

約数ペア:

[(1, 20426835), (3, 6808945), (5, 4085367), (11, 1856985), (13, 1571295), (15, 1361789), (33, 618995), (39, 523765), (55, 371397), (65, 314259), (89, 229515), (107, 190905), (143, 142845), (165, 123799), (195, 104753), (267, 76505), (321, 63635), (429, 47615), (445, 45903), (535, 38181), (715, 28569), (979, 20865), (1157, 17655), (1177, 17355), (1335, 15301), (1391, 14685), (1605, 12727), (2145, 9523), (2937, 6955), (3471, 5885), (3531, 5785), (4173, 4895)]