31727787

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1$

素因数の和:240

約数の個数: 64

約数和(自身を含む): 56426496

約数和(自身を除く): 24698709

約数列:

[1, 3, 7, 13, 21, 23, 31, 39, 69, 91, 93, 161, 163, 217, 273, 299, 403, 483, 489, 651, 713, 897, 1141, 1209, 2093, 2119, 2139, 2821, 3423, 3749, 4991, 5053, 6279, 6357, 8463, 9269, 11247, 14833, 14973, 15159, 26243, 27807, 35371, 44499, 48737, 64883, 65689, 78729, 106113, 116219, 146211, 194649, 197067, 341159, 348657, 459823, 813533, 1023477, 1379469, 1510847, 2440599, 4532541, 10575929, 31727787]

約数ペア:

[(1, 31727787), (3, 10575929), (7, 4532541), (13, 2440599), (21, 1510847), (23, 1379469), (31, 1023477), (39, 813533), (69, 459823), (91, 348657), (93, 341159), (161, 197067), (163, 194649), (217, 146211), (273, 116219), (299, 106113), (403, 78729), (483, 65689), (489, 64883), (651, 48737), (713, 44499), (897, 35371), (1141, 27807), (1209, 26243), (2093, 15159), (2119, 14973), (2139, 14833), (2821, 11247), (3423, 9269), (3749, 8463), (4991, 6357), (5053, 6279)]