201904983

素因数分解:

$3^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{149}}^1\times {\mathrm{157}}^1$

素因数の和:456

約数の個数: 48

約数和(自身を含む): 340142400

約数和(自身を除く): 138237417

約数列:

[1, 3, 7, 9, 21, 63, 137, 149, 157, 411, 447, 471, 959, 1043, 1099, 1233, 1341, 1413, 2877, 3129, 3297, 8631, 9387, 9891, 20413, 21509, 23393, 61239, 64527, 70179, 142891, 150563, 163751, 183717, 193581, 210537, 428673, 451689, 491253, 1286019, 1355067, 1473759, 3204841, 9614523, 22433887, 28843569, 67301661, 201904983]

約数ペア:

[(1, 201904983), (3, 67301661), (7, 28843569), (9, 22433887), (21, 9614523), (63, 3204841), (137, 1473759), (149, 1355067), (157, 1286019), (411, 491253), (447, 451689), (471, 428673), (959, 210537), (1043, 193581), (1099, 183717), (1233, 163751), (1341, 150563), (1413, 142891), (2877, 70179), (3129, 64527), (3297, 61239), (8631, 23393), (9387, 21509), (9891, 20413)]