21203235

素因数分解:

$3^3\times 5^1\times {\mathrm{157061}}^1$

素因数の和:157075

約数の個数: 16

約数和(自身を含む): 37694880

約数和(自身を除く): 16491645

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 157061, 471183, 785305, 1413549, 2355915, 4240647, 7067745, 21203235]

約数ペア:

[(1, 21203235), (3, 7067745), (5, 4240647), (9, 2355915), (15, 1413549), (27, 785305), (45, 471183), (135, 157061)]