19781242

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1741}}^1$

素因数の和:1798

約数の個数: 32

約数和(自身を含む): 35118720

約数和(自身を除く): 15337478

約数列:

[1, 2, 13, 19, 23, 26, 38, 46, 247, 299, 437, 494, 598, 874, 1741, 3482, 5681, 11362, 22633, 33079, 40043, 45266, 66158, 80086, 430027, 520559, 760817, 860054, 1041118, 1521634, 9890621, 19781242]

約数ペア:

[(1, 19781242), (2, 9890621), (13, 1521634), (19, 1041118), (23, 860054), (26, 760817), (38, 520559), (46, 430027), (247, 80086), (299, 66158), (437, 45266), (494, 40043), (598, 33079), (874, 22633), (1741, 11362), (3482, 5681)]