638235

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1091}}^1$

素因数の和:1115

約数の個数: 24

約数和(自身を含む): 1192464

約数和(自身を除く): 554229

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585, 1091, 3273, 5455, 9819, 14183, 16365, 42549, 49095, 70915, 127647, 212745, 638235]

約数ペア:

[(1, 638235), (3, 212745), (5, 127647), (9, 70915), (13, 49095), (15, 42549), (39, 16365), (45, 14183), (65, 9819), (117, 5455), (195, 3273), (585, 1091)]