1388405961

素因数分解:

$3^3\times {\mathrm{79}}^1\times {\mathrm{650917}}^1$

素因数の和:651005

約数の個数: 16

約数和(自身を含む): 2082937600

約数和(自身を除く): 694531639

約数列:

[1, 3, 9, 27, 79, 237, 711, 2133, 650917, 1952751, 5858253, 17574759, 51422443, 154267329, 462801987, 1388405961]

約数ペア:

[(1, 1388405961), (3, 462801987), (9, 154267329), (27, 51422443), (79, 17574759), (237, 5858253), (711, 1952751), (2133, 650917)]