1990918413

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{42697}}^1$

素因数の和:42874

約数の個数: 32

約数和(自身を含む): 3238216320

約数和(自身を除く): 1247297907

約数列:

[1, 3, 9, 11, 27, 33, 99, 157, 297, 471, 1413, 1727, 4239, 5181, 15543, 42697, 46629, 128091, 384273, 469667, 1152819, 1409001, 4227003, 6703429, 12681009, 20110287, 60330861, 73737719, 180992583, 221213157, 663639471, 1990918413]

約数ペア:

[(1, 1990918413), (3, 663639471), (9, 221213157), (11, 180992583), (27, 73737719), (33, 60330861), (99, 20110287), (157, 12681009), (297, 6703429), (471, 4227003), (1413, 1409001), (1727, 1152819), (4239, 469667), (5181, 384273), (15543, 128091), (42697, 46629)]