399844935

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{20809}}^1$

素因数の和:20888

約数の個数: 48

約数和(自身を含む): 805097280

約数和(自身を除く): 405252345

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 61, 63, 105, 183, 305, 315, 427, 549, 915, 1281, 2135, 2745, 3843, 6405, 19215, 20809, 62427, 104045, 145663, 187281, 312135, 436989, 728315, 936405, 1269349, 1310967, 2184945, 3808047, 6346745, 6554835, 8885443, 11424141, 19040235, 26656329, 44427215, 57120705, 79968987, 133281645, 399844935]

約数ペア:

[(1, 399844935), (3, 133281645), (5, 79968987), (7, 57120705), (9, 44427215), (15, 26656329), (21, 19040235), (35, 11424141), (45, 8885443), (61, 6554835), (63, 6346745), (105, 3808047), (183, 2184945), (305, 1310967), (315, 1269349), (427, 936405), (549, 728315), (915, 436989), (1281, 312135), (2135, 187281), (2745, 145663), (3843, 104045), (6405, 62427), (19215, 20809)]