19403715

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{1619}}^1$

素因数の和:1691

約数の個数: 32

約数和(自身を含む): 33592320

約数和(自身を除く): 14188605

約数列:

[1, 3, 5, 15, 17, 47, 51, 85, 141, 235, 255, 705, 799, 1619, 2397, 3995, 4857, 8095, 11985, 24285, 27523, 76093, 82569, 137615, 228279, 380465, 412845, 1141395, 1293581, 3880743, 6467905, 19403715]

約数ペア:

[(1, 19403715), (3, 6467905), (5, 3880743), (15, 1293581), (17, 1141395), (47, 412845), (51, 380465), (85, 228279), (141, 137615), (235, 82569), (255, 76093), (705, 27523), (799, 24285), (1619, 11985), (2397, 8095), (3995, 4857)]