18539157

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{1151}}^1$

素因数の和:1233

約数の個数: 32

約数和(自身を含む): 30965760

約数和(自身を除く): 12426603

約数列:

[1, 3, 7, 13, 21, 39, 59, 91, 177, 273, 413, 767, 1151, 1239, 2301, 3453, 5369, 8057, 14963, 16107, 24171, 44889, 67909, 104741, 203727, 314223, 475363, 882817, 1426089, 2648451, 6179719, 18539157]

約数ペア:

[(1, 18539157), (3, 6179719), (7, 2648451), (13, 1426089), (21, 882817), (39, 475363), (59, 314223), (91, 203727), (177, 104741), (273, 67909), (413, 44889), (767, 24171), (1151, 16107), (1239, 14963), (2301, 8057), (3453, 5369)]