19939827

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{191}}^1$

素因数の和:323

約数の個数: 32

約数和(自身を含む): 29859840

約数和(自身を除く): 9920013

約数列:

[1, 3, 17, 23, 51, 69, 89, 191, 267, 391, 573, 1173, 1513, 2047, 3247, 4393, 4539, 6141, 9741, 13179, 16999, 34799, 50997, 74681, 104397, 224043, 288983, 390977, 866949, 1172931, 6646609, 19939827]

約数ペア:

[(1, 19939827), (3, 6646609), (17, 1172931), (23, 866949), (51, 390977), (69, 288983), (89, 224043), (191, 104397), (267, 74681), (391, 50997), (573, 34799), (1173, 16999), (1513, 13179), (2047, 9741), (3247, 6141), (4393, 4539)]