3945753

素因数分解:

$3^4\times 7^1\times {\mathrm{6959}}^1$

素因数の和:6978

約数の個数: 20

約数和(自身を含む): 6737280

約数和(自身を除く): 2791527

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 6959, 20877, 48713, 62631, 146139, 187893, 438417, 563679, 1315251, 3945753]

約数ペア:

[(1, 3945753), (3, 1315251), (7, 563679), (9, 438417), (21, 187893), (27, 146139), (63, 62631), (81, 48713), (189, 20877), (567, 6959)]