18906258

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{107}}^1\times {\mathrm{601}}^1$

素因数の和:727

約数の個数: 48

約数和(自身を含む): 44470944

約数和(自身を除く): 25564686

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 107, 147, 214, 294, 321, 601, 642, 749, 1202, 1498, 1803, 2247, 3606, 4207, 4494, 5243, 8414, 10486, 12621, 15729, 25242, 29449, 31458, 58898, 64307, 88347, 128614, 176694, 192921, 385842, 450149, 900298, 1350447, 2700894, 3151043, 6302086, 9453129, 18906258]

約数ペア:

[(1, 18906258), (2, 9453129), (3, 6302086), (6, 3151043), (7, 2700894), (14, 1350447), (21, 900298), (42, 450149), (49, 385842), (98, 192921), (107, 176694), (147, 128614), (214, 88347), (294, 64307), (321, 58898), (601, 31458), (642, 29449), (749, 25242), (1202, 15729), (1498, 12621), (1803, 10486), (2247, 8414), (3606, 5243), (4207, 4494)]