208889415

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{221047}}^1$

素因数の和:221068

約数の個数: 32

約数和(自身を含む): 424412160

約数和(自身を除く): 215522745

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 221047, 663141, 1105235, 1547329, 1989423, 3315705, 4641987, 5968269, 7736645, 9947115, 13925961, 23209935, 29841345, 41777883, 69629805, 208889415]

約数ペア:

[(1, 208889415), (3, 69629805), (5, 41777883), (7, 29841345), (9, 23209935), (15, 13925961), (21, 9947115), (27, 7736645), (35, 5968269), (45, 4641987), (63, 3315705), (105, 1989423), (135, 1547329), (189, 1105235), (315, 663141), (945, 221047)]