51520131

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{347}}^1$

素因数の和:422

約数の個数: 48

約数和(自身を含む): 85123584

約数和(自身を除く): 33603453

約数列:

[1, 3, 9, 13, 27, 39, 47, 81, 117, 141, 243, 347, 351, 423, 611, 1041, 1053, 1269, 1833, 3123, 3159, 3807, 4511, 5499, 9369, 11421, 13533, 16309, 16497, 28107, 40599, 48927, 49491, 84321, 121797, 146781, 148473, 212017, 365391, 440343, 636051, 1096173, 1321029, 1908153, 3963087, 5724459, 17173377, 51520131]

約数ペア:

[(1, 51520131), (3, 17173377), (9, 5724459), (13, 3963087), (27, 1908153), (39, 1321029), (47, 1096173), (81, 636051), (117, 440343), (141, 365391), (243, 212017), (347, 148473), (351, 146781), (423, 121797), (611, 84321), (1041, 49491), (1053, 48927), (1269, 40599), (1833, 28107), (3123, 16497), (3159, 16309), (3807, 13533), (4511, 11421), (5499, 9369)]