1991231151

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1151}}^1\times {\mathrm{6337}}^1$

素因数の和:7511

約数の個数: 32

約数和(自身を含む): 3271016448

約数和(自身を除く): 1279785297

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 1151, 3453, 6337, 8057, 14963, 19011, 24171, 44359, 44889, 82381, 104741, 133077, 247143, 314223, 576667, 1730001, 7293887, 21881661, 51057209, 94820531, 153171627, 284461593, 663743717, 1991231151]

約数ペア:

[(1, 1991231151), (3, 663743717), (7, 284461593), (13, 153171627), (21, 94820531), (39, 51057209), (91, 21881661), (273, 7293887), (1151, 1730001), (3453, 576667), (6337, 314223), (8057, 247143), (14963, 133077), (19011, 104741), (24171, 82381), (44359, 44889)]