21681744

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{373}}^1$

素因数の和:564

約数の個数: 80

約数和(自身を含む): 64555392

約数和(自身を除く): 42873648

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 173, 336, 346, 373, 519, 692, 746, 1038, 1119, 1211, 1384, 1492, 2076, 2238, 2422, 2611, 2768, 2984, 3633, 4152, 4476, 4844, 5222, 5968, 7266, 7833, 8304, 8952, 9688, 10444, 14532, 15666, 17904, 19376, 20888, 29064, 31332, 41776, 58128, 62664, 64529, 125328, 129058, 193587, 258116, 387174, 451703, 516232, 774348, 903406, 1032464, 1355109, 1548696, 1806812, 2710218, 3097392, 3613624, 5420436, 7227248, 10840872, 21681744]

約数ペア:

[(1, 21681744), (2, 10840872), (3, 7227248), (4, 5420436), (6, 3613624), (7, 3097392), (8, 2710218), (12, 1806812), (14, 1548696), (16, 1355109), (21, 1032464), (24, 903406), (28, 774348), (42, 516232), (48, 451703), (56, 387174), (84, 258116), (112, 193587), (168, 129058), (173, 125328), (336, 64529), (346, 62664), (373, 58128), (519, 41776), (692, 31332), (746, 29064), (1038, 20888), (1119, 19376), (1211, 17904), (1384, 15666), (1492, 14532), (2076, 10444), (2238, 9688), (2422, 8952), (2611, 8304), (2768, 7833), (2984, 7266), (3633, 5968), (4152, 5222), (4476, 4844)]