201392457

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{3853}}^1$

素因数の和:4013

約数の個数: 32

約数和(自身を含む): 325585920

約数和(自身を除く): 124193463

約数列:

[1, 3, 7, 19, 21, 57, 131, 133, 393, 399, 917, 2489, 2751, 3853, 7467, 11559, 17423, 26971, 52269, 73207, 80913, 219621, 504743, 512449, 1514229, 1537347, 3533201, 9590117, 10599603, 28770351, 67130819, 201392457]

約数ペア:

[(1, 201392457), (3, 67130819), (7, 28770351), (19, 10599603), (21, 9590117), (57, 3533201), (131, 1537347), (133, 1514229), (393, 512449), (399, 504743), (917, 219621), (2489, 80913), (2751, 73207), (3853, 52269), (7467, 26971), (11559, 17423)]