20996834705

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{463}}^1\times {\mathrm{1931}}^1$

素因数の和:2478

約数の個数: 64

約数和(自身を含む): 32013950976

約数和(自身を除く): 11017116271

約数列:

[1, 5, 7, 11, 35, 55, 61, 77, 305, 385, 427, 463, 671, 1931, 2135, 2315, 3241, 3355, 4697, 5093, 9655, 13517, 16205, 21241, 23485, 25465, 28243, 35651, 67585, 106205, 117791, 141215, 148687, 178255, 197701, 310673, 588955, 743435, 824537, 894053, 988505, 1295701, 1553365, 2174711, 4122685, 4470265, 6258371, 6478505, 9069907, 9834583, 10873555, 31291855, 45349535, 49172915, 54537233, 68842081, 272686165, 344210405, 381760631, 599909563, 1908803155, 2999547815, 4199366941, 20996834705]

約数ペア:

[(1, 20996834705), (5, 4199366941), (7, 2999547815), (11, 1908803155), (35, 599909563), (55, 381760631), (61, 344210405), (77, 272686165), (305, 68842081), (385, 54537233), (427, 49172915), (463, 45349535), (671, 31291855), (1931, 10873555), (2135, 9834583), (2315, 9069907), (3241, 6478505), (3355, 6258371), (4697, 4470265), (5093, 4122685), (9655, 2174711), (13517, 1553365), (16205, 1295701), (21241, 988505), (23485, 894053), (25465, 824537), (28243, 743435), (35651, 588955), (67585, 310673), (106205, 197701), (117791, 178255), (141215, 148687)]