21497904

素因数分解:

$2^4\times 3^2\times {\mathrm{337}}^1\times {\mathrm{443}}^1$

素因数の和:794

約数の個数: 60

約数和(自身を含む): 60479016

約数和(自身を除く): 38981112

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 337, 443, 674, 886, 1011, 1329, 1348, 1772, 2022, 2658, 2696, 3033, 3544, 3987, 4044, 5316, 5392, 6066, 7088, 7974, 8088, 10632, 12132, 15948, 16176, 21264, 24264, 31896, 48528, 63792, 149291, 298582, 447873, 597164, 895746, 1194328, 1343619, 1791492, 2388656, 2687238, 3582984, 5374476, 7165968, 10748952, 21497904]

約数ペア:

[(1, 21497904), (2, 10748952), (3, 7165968), (4, 5374476), (6, 3582984), (8, 2687238), (9, 2388656), (12, 1791492), (16, 1343619), (18, 1194328), (24, 895746), (36, 597164), (48, 447873), (72, 298582), (144, 149291), (337, 63792), (443, 48528), (674, 31896), (886, 24264), (1011, 21264), (1329, 16176), (1348, 15948), (1772, 12132), (2022, 10632), (2658, 8088), (2696, 7974), (3033, 7088), (3544, 6066), (3987, 5392), (4044, 5316)]