51021495

素因数分解:

$3^5\times 5^1\times 7^2\times {\mathrm{857}}^1$

素因数の和:891

約数の個数: 72

約数和(自身を含む): 106810704

約数和(自身を除く): 55789209

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 49, 63, 81, 105, 135, 147, 189, 243, 245, 315, 405, 441, 567, 735, 857, 945, 1215, 1323, 1701, 2205, 2571, 2835, 3969, 4285, 5999, 6615, 7713, 8505, 11907, 12855, 17997, 19845, 23139, 29995, 38565, 41993, 53991, 59535, 69417, 89985, 115695, 125979, 161973, 208251, 209965, 269955, 347085, 377937, 485919, 629895, 809865, 1041255, 1133811, 1457757, 1889685, 2429595, 3401433, 5669055, 7288785, 10204299, 17007165, 51021495]

約数ペア:

[(1, 51021495), (3, 17007165), (5, 10204299), (7, 7288785), (9, 5669055), (15, 3401433), (21, 2429595), (27, 1889685), (35, 1457757), (45, 1133811), (49, 1041255), (63, 809865), (81, 629895), (105, 485919), (135, 377937), (147, 347085), (189, 269955), (243, 209965), (245, 208251), (315, 161973), (405, 125979), (441, 115695), (567, 89985), (735, 69417), (857, 59535), (945, 53991), (1215, 41993), (1323, 38565), (1701, 29995), (2205, 23139), (2571, 19845), (2835, 17997), (3969, 12855), (4285, 11907), (5999, 8505), (6615, 7713)]