21168052

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{1249}}^1$

素因数の和:1495

約数の個数: 24

約数和(自身を含む): 39200000

約数和(自身を除く): 18031948

約数列:

[1, 2, 4, 19, 38, 76, 223, 446, 892, 1249, 2498, 4237, 4996, 8474, 16948, 23731, 47462, 94924, 278527, 557054, 1114108, 5292013, 10584026, 21168052]

約数ペア:

[(1, 21168052), (2, 10584026), (4, 5292013), (19, 1114108), (38, 557054), (76, 278527), (223, 94924), (446, 47462), (892, 23731), (1249, 16948), (2498, 8474), (4237, 4996)]