697788189

素因数分解:

$3^4\times 7^1\times {\mathrm{1230667}}^1$

素因数の和:1230686

約数の個数: 20

約数和(自身を含む): 1191286624

約数和(自身を除く): 493498435

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 1230667, 3692001, 8614669, 11076003, 25844007, 33228009, 77532021, 99684027, 232596063, 697788189]

約数ペア:

[(1, 697788189), (3, 232596063), (7, 99684027), (9, 77532021), (21, 33228009), (27, 25844007), (63, 11076003), (81, 8614669), (189, 3692001), (567, 1230667)]