21687948

素因数分解:

$2^2\times 3^2\times {\mathrm{109}}^1\times {\mathrm{5527}}^1$

素因数の和:5646

約数の個数: 36

約数和(自身を含む): 55335280

約数和(自身を除く): 33647332

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 109, 218, 327, 436, 654, 981, 1308, 1962, 3924, 5527, 11054, 16581, 22108, 33162, 49743, 66324, 99486, 198972, 602443, 1204886, 1807329, 2409772, 3614658, 5421987, 7229316, 10843974, 21687948]

約数ペア:

[(1, 21687948), (2, 10843974), (3, 7229316), (4, 5421987), (6, 3614658), (9, 2409772), (12, 1807329), (18, 1204886), (36, 602443), (109, 198972), (218, 99486), (327, 66324), (436, 49743), (654, 33162), (981, 22108), (1308, 16581), (1962, 11054), (3924, 5527)]