21001755

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{479}}^1$

素因数の和:603

約数の個数: 32

約数和(自身を含む): 35020800

約数和(自身を除く): 14019045

約数列:

[1, 3, 5, 15, 37, 79, 111, 185, 237, 395, 479, 555, 1185, 1437, 2395, 2923, 7185, 8769, 14615, 17723, 37841, 43845, 53169, 88615, 113523, 189205, 265845, 567615, 1400117, 4200351, 7000585, 21001755]

約数ペア:

[(1, 21001755), (3, 7000585), (5, 4200351), (15, 1400117), (37, 567615), (79, 265845), (111, 189205), (185, 113523), (237, 88615), (395, 53169), (479, 43845), (555, 37841), (1185, 17723), (1437, 14615), (2395, 8769), (2923, 7185)]