21529055

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{47}}^1\times {\mathrm{317}}^1$

素因数の和:403

約数の個数: 24

約数和(自身を含む): 28116288

約数和(自身を除く): 6587233

約数列:

[1, 5, 17, 47, 85, 235, 289, 317, 799, 1445, 1585, 3995, 5389, 13583, 14899, 26945, 67915, 74495, 91613, 253283, 458065, 1266415, 4305811, 21529055]

約数ペア:

[(1, 21529055), (5, 4305811), (17, 1266415), (47, 458065), (85, 253283), (235, 91613), (289, 74495), (317, 67915), (799, 26945), (1445, 14899), (1585, 13583), (3995, 5389)]