21647208

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{167}}^1\times {\mathrm{491}}^1$

素因数の和:678

約数の個数: 64

約数和(自身を含む): 59512320

約数和(自身を除く): 37865112

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 44, 66, 88, 132, 167, 264, 334, 491, 501, 668, 982, 1002, 1336, 1473, 1837, 1964, 2004, 2946, 3674, 3928, 4008, 5401, 5511, 5892, 7348, 10802, 11022, 11784, 14696, 16203, 21604, 22044, 32406, 43208, 44088, 64812, 81997, 129624, 163994, 245991, 327988, 491982, 655976, 901967, 983964, 1803934, 1967928, 2705901, 3607868, 5411802, 7215736, 10823604, 21647208]

約数ペア:

[(1, 21647208), (2, 10823604), (3, 7215736), (4, 5411802), (6, 3607868), (8, 2705901), (11, 1967928), (12, 1803934), (22, 983964), (24, 901967), (33, 655976), (44, 491982), (66, 327988), (88, 245991), (132, 163994), (167, 129624), (264, 81997), (334, 64812), (491, 44088), (501, 43208), (668, 32406), (982, 22044), (1002, 21604), (1336, 16203), (1473, 14696), (1837, 11784), (1964, 11022), (2004, 10802), (2946, 7348), (3674, 5892), (3928, 5511), (4008, 5401)]