206973

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1$

素因数の和:109

約数の個数: 24

約数和(自身を含む): 338520

約数和(自身を除く): 131547

約数列:

[1, 3, 9, 13, 29, 39, 61, 87, 117, 183, 261, 377, 549, 793, 1131, 1769, 2379, 3393, 5307, 7137, 15921, 22997, 68991, 206973]

約数ペア:

[(1, 206973), (3, 68991), (9, 22997), (13, 15921), (29, 7137), (39, 5307), (61, 3393), (87, 2379), (117, 1769), (183, 1131), (261, 793), (377, 549)]