21403030

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{1087}}^1$

素因数の和:1284

約数の個数: 32

約数和(自身を含む): 42301440

約数和(自身を除く): 20898410

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 179, 358, 895, 1087, 1790, 1969, 2174, 3938, 5435, 9845, 10870, 11957, 19690, 23914, 59785, 119570, 194573, 389146, 972865, 1945730, 2140303, 4280606, 10701515, 21403030]

約数ペア:

[(1, 21403030), (2, 10701515), (5, 4280606), (10, 2140303), (11, 1945730), (22, 972865), (55, 389146), (110, 194573), (179, 119570), (358, 59785), (895, 23914), (1087, 19690), (1790, 11957), (1969, 10870), (2174, 9845), (3938, 5435)]