21104576

素因数分解:

$2^6\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{137}}^1$

素因数の和:261

約数の個数: 56

約数和(自身を含む): 44165520

約数和(自身を除く): 23060944

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 64, 83, 116, 137, 166, 232, 274, 332, 464, 548, 664, 928, 1096, 1328, 1856, 2192, 2407, 2656, 3973, 4384, 4814, 5312, 7946, 8768, 9628, 11371, 15892, 19256, 22742, 31784, 38512, 45484, 63568, 77024, 90968, 127136, 154048, 181936, 254272, 329759, 363872, 659518, 727744, 1319036, 2638072, 5276144, 10552288, 21104576]

約数ペア:

[(1, 21104576), (2, 10552288), (4, 5276144), (8, 2638072), (16, 1319036), (29, 727744), (32, 659518), (58, 363872), (64, 329759), (83, 254272), (116, 181936), (137, 154048), (166, 127136), (232, 90968), (274, 77024), (332, 63568), (464, 45484), (548, 38512), (664, 31784), (928, 22742), (1096, 19256), (1328, 15892), (1856, 11371), (2192, 9628), (2407, 8768), (2656, 7946), (3973, 5312), (4384, 4814)]