21609976

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{1103}}^1$

素因数の和:1219

約数の個数: 32

約数和(自身を含む): 42393600

約数和(自身を除く): 20783624

約数列:

[1, 2, 4, 8, 31, 62, 79, 124, 158, 248, 316, 632, 1103, 2206, 2449, 4412, 4898, 8824, 9796, 19592, 34193, 68386, 87137, 136772, 174274, 273544, 348548, 697096, 2701247, 5402494, 10804988, 21609976]

約数ペア:

[(1, 21609976), (2, 10804988), (4, 5402494), (8, 2701247), (31, 697096), (62, 348548), (79, 273544), (124, 174274), (158, 136772), (248, 87137), (316, 68386), (632, 34193), (1103, 19592), (2206, 9796), (2449, 8824), (4412, 4898)]