390243495747

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{395383481}}^1$

素因数の和:395383538

約数の個数: 16

約数和(自身を含む): 607309028352

約数和(自身を除く): 217065532605

約数列:

[1, 3, 7, 21, 47, 141, 329, 987, 395383481, 1186150443, 2767684367, 8303053101, 18583023607, 55749070821, 130081165249, 390243495747]

約数ペア:

[(1, 390243495747), (3, 130081165249), (7, 55749070821), (21, 18583023607), (47, 8303053101), (141, 2767684367), (329, 1186150443), (987, 395383481)]