19979379

素因数分解:

$3^4\times 7^1\times {\mathrm{167}}^1\times {\mathrm{211}}^1$

素因数の和:397

約数の個数: 40

約数和(自身を含む): 34476288

約数和(自身を除く): 14496909

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 167, 189, 211, 501, 567, 633, 1169, 1477, 1503, 1899, 3507, 4431, 4509, 5697, 10521, 13293, 13527, 17091, 31563, 35237, 39879, 94689, 105711, 119637, 246659, 317133, 739977, 951399, 2219931, 2854197, 6659793, 19979379]

約数ペア:

[(1, 19979379), (3, 6659793), (7, 2854197), (9, 2219931), (21, 951399), (27, 739977), (63, 317133), (81, 246659), (167, 119637), (189, 105711), (211, 94689), (501, 39879), (567, 35237), (633, 31563), (1169, 17091), (1477, 13527), (1503, 13293), (1899, 10521), (3507, 5697), (4431, 4509)]