21719808

素因数分解:

$2^8\times 3^2\times {\mathrm{11}}^1\times {\mathrm{857}}^1$

素因数の和:890

約数の個数: 108

約数和(自身を含む): 68396328

約数和(自身を除く): 46676520

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 32, 33, 36, 44, 48, 64, 66, 72, 88, 96, 99, 128, 132, 144, 176, 192, 198, 256, 264, 288, 352, 384, 396, 528, 576, 704, 768, 792, 857, 1056, 1152, 1408, 1584, 1714, 2112, 2304, 2571, 2816, 3168, 3428, 4224, 5142, 6336, 6856, 7713, 8448, 9427, 10284, 12672, 13712, 15426, 18854, 20568, 25344, 27424, 28281, 30852, 37708, 41136, 54848, 56562, 61704, 75416, 82272, 84843, 109696, 113124, 123408, 150832, 164544, 169686, 219392, 226248, 246816, 301664, 329088, 339372, 452496, 493632, 603328, 658176, 678744, 904992, 987264, 1206656, 1357488, 1809984, 1974528, 2413312, 2714976, 3619968, 5429952, 7239936, 10859904, 21719808]

約数ペア:

[(1, 21719808), (2, 10859904), (3, 7239936), (4, 5429952), (6, 3619968), (8, 2714976), (9, 2413312), (11, 1974528), (12, 1809984), (16, 1357488), (18, 1206656), (22, 987264), (24, 904992), (32, 678744), (33, 658176), (36, 603328), (44, 493632), (48, 452496), (64, 339372), (66, 329088), (72, 301664), (88, 246816), (96, 226248), (99, 219392), (128, 169686), (132, 164544), (144, 150832), (176, 123408), (192, 113124), (198, 109696), (256, 84843), (264, 82272), (288, 75416), (352, 61704), (384, 56562), (396, 54848), (528, 41136), (576, 37708), (704, 30852), (768, 28281), (792, 27424), (857, 25344), (1056, 20568), (1152, 18854), (1408, 15426), (1584, 13712), (1714, 12672), (2112, 10284), (2304, 9427), (2571, 8448), (2816, 7713), (3168, 6856), (3428, 6336), (4224, 5142)]