1991284749

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{1409}}^1\times {\mathrm{3079}}^1$

素因数の和:4514

約数の個数: 32

約数和(自身を含む): 3126816000

約数和(自身を除く): 1135531251

約数列:

[1, 3, 9, 17, 27, 51, 153, 459, 1409, 3079, 4227, 9237, 12681, 23953, 27711, 38043, 52343, 71859, 83133, 157029, 215577, 471087, 646731, 1413261, 4338311, 13014933, 39044799, 73751287, 117134397, 221253861, 663761583, 1991284749]

約数ペア:

[(1, 1991284749), (3, 663761583), (9, 221253861), (17, 117134397), (27, 73751287), (51, 39044799), (153, 13014933), (459, 4338311), (1409, 1413261), (3079, 646731), (4227, 471087), (9237, 215577), (12681, 157029), (23953, 83133), (27711, 71859), (38043, 52343)]