21470270

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{277}}^1\times {\mathrm{337}}^1$

素因数の和:644

約数の個数: 32

約数和(自身を含む): 40592448

約数和(自身を除く): 19122178

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 277, 337, 554, 674, 1385, 1685, 2770, 3370, 6371, 7751, 12742, 15502, 31855, 38755, 63710, 77510, 93349, 186698, 466745, 933490, 2147027, 4294054, 10735135, 21470270]

約数ペア:

[(1, 21470270), (2, 10735135), (5, 4294054), (10, 2147027), (23, 933490), (46, 466745), (115, 186698), (230, 93349), (277, 77510), (337, 63710), (554, 38755), (674, 31855), (1385, 15502), (1685, 12742), (2770, 7751), (3370, 6371)]