21201272

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{1613}}^1$

素因数の和:1703

約数の個数: 32

約数和(自身を含む): 41834880

約数和(自身を除く): 20633608

約数列:

[1, 2, 4, 8, 31, 53, 62, 106, 124, 212, 248, 424, 1613, 1643, 3226, 3286, 6452, 6572, 12904, 13144, 50003, 85489, 100006, 170978, 200012, 341956, 400024, 683912, 2650159, 5300318, 10600636, 21201272]

約数ペア:

[(1, 21201272), (2, 10600636), (4, 5300318), (8, 2650159), (31, 683912), (53, 400024), (62, 341956), (106, 200012), (124, 170978), (212, 100006), (248, 85489), (424, 50003), (1613, 13144), (1643, 12904), (3226, 6572), (3286, 6452)]