20531808

素因数分解:

$2^5\times 3^2\times {\mathrm{11}}^1\times {\mathrm{6481}}^1$

素因数の和:6508

約数の個数: 72

約数和(自身を含む): 63705096

約数和(自身を除く): 43173288

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 32, 33, 36, 44, 48, 66, 72, 88, 96, 99, 132, 144, 176, 198, 264, 288, 352, 396, 528, 792, 1056, 1584, 3168, 6481, 12962, 19443, 25924, 38886, 51848, 58329, 71291, 77772, 103696, 116658, 142582, 155544, 207392, 213873, 233316, 285164, 311088, 427746, 466632, 570328, 622176, 641619, 855492, 933264, 1140656, 1283238, 1710984, 1866528, 2281312, 2566476, 3421968, 5132952, 6843936, 10265904, 20531808]

約数ペア:

[(1, 20531808), (2, 10265904), (3, 6843936), (4, 5132952), (6, 3421968), (8, 2566476), (9, 2281312), (11, 1866528), (12, 1710984), (16, 1283238), (18, 1140656), (22, 933264), (24, 855492), (32, 641619), (33, 622176), (36, 570328), (44, 466632), (48, 427746), (66, 311088), (72, 285164), (88, 233316), (96, 213873), (99, 207392), (132, 155544), (144, 142582), (176, 116658), (198, 103696), (264, 77772), (288, 71291), (352, 58329), (396, 51848), (528, 38886), (792, 25924), (1056, 19443), (1584, 12962), (3168, 6481)]