21649290

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{55511}}^1$

素因数の和:55534

約数の個数: 32

約数和(自身を含む): 55956096

約数和(自身を除く): 34306806

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 55511, 111022, 166533, 277555, 333066, 555110, 721643, 832665, 1443286, 1665330, 2164929, 3608215, 4329858, 7216430, 10824645, 21649290]

約数ペア:

[(1, 21649290), (2, 10824645), (3, 7216430), (5, 4329858), (6, 3608215), (10, 2164929), (13, 1665330), (15, 1443286), (26, 832665), (30, 721643), (39, 555110), (65, 333066), (78, 277555), (130, 166533), (195, 111022), (390, 55511)]