21625551872

素因数分解:

$2^{10}\times {\mathrm{127}}^1\times {\mathrm{166289}}^1$

素因数の和:166436

約数の個数: 44

約数和(自身を含む): 43570640640

約数和(自身を除く): 21945088768

約数列:

[1, 2, 4, 8, 16, 32, 64, 127, 128, 254, 256, 508, 512, 1016, 1024, 2032, 4064, 8128, 16256, 32512, 65024, 130048, 166289, 332578, 665156, 1330312, 2660624, 5321248, 10642496, 21118703, 21284992, 42237406, 42569984, 84474812, 85139968, 168949624, 170279936, 337899248, 675798496, 1351596992, 2703193984, 5406387968, 10812775936, 21625551872]

約数ペア:

[(1, 21625551872), (2, 10812775936), (4, 5406387968), (8, 2703193984), (16, 1351596992), (32, 675798496), (64, 337899248), (127, 170279936), (128, 168949624), (254, 85139968), (256, 84474812), (508, 42569984), (512, 42237406), (1016, 21284992), (1024, 21118703), (2032, 10642496), (4064, 5321248), (8128, 2660624), (16256, 1330312), (32512, 665156), (65024, 332578), (130048, 166289)]