210320721

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{7919}}^1$

素因数の和:8165

約数の個数: 24

約数和(自身を含む): 328648320

約数和(自身を除く): 118327599

約数列:

[1, 3, 9, 13, 39, 117, 227, 681, 2043, 2951, 7919, 8853, 23757, 26559, 71271, 102947, 308841, 926523, 1797613, 5392839, 16178517, 23368969, 70106907, 210320721]

約数ペア:

[(1, 210320721), (3, 70106907), (9, 23368969), (13, 16178517), (39, 5392839), (117, 1797613), (227, 926523), (681, 308841), (2043, 102947), (2951, 71271), (7919, 26559), (8853, 23757)]