17953803

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{283}}^1$

素因数の和:368

約数の個数: 48

約数和(自身を含む): 31898880

約数和(自身を除く): 13945077

約数列:

[1, 3, 7, 9, 19, 21, 53, 57, 63, 133, 159, 171, 283, 371, 399, 477, 849, 1007, 1113, 1197, 1981, 2547, 3021, 3339, 5377, 5943, 7049, 9063, 14999, 16131, 17829, 21147, 37639, 44997, 48393, 63441, 104993, 112917, 134991, 284981, 314979, 338751, 854943, 944937, 1994867, 2564829, 5984601, 17953803]

約数ペア:

[(1, 17953803), (3, 5984601), (7, 2564829), (9, 1994867), (19, 944937), (21, 854943), (53, 338751), (57, 314979), (63, 284981), (133, 134991), (159, 112917), (171, 104993), (283, 63441), (371, 48393), (399, 44997), (477, 37639), (849, 21147), (1007, 17829), (1113, 16131), (1197, 14999), (1981, 9063), (2547, 7049), (3021, 5943), (3339, 5377)]