27986777

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{229}}^1$

素因数の和:345

約数の個数: 32

約数和(自身を含む): 37094400

約数和(自身を除く): 9107623

約数列:

[1, 7, 13, 17, 79, 91, 119, 221, 229, 553, 1027, 1343, 1547, 1603, 2977, 3893, 7189, 9401, 17459, 18091, 20839, 27251, 50609, 122213, 126637, 235183, 307547, 354263, 1646281, 2152829, 3998111, 27986777]

約数ペア:

[(1, 27986777), (7, 3998111), (13, 2152829), (17, 1646281), (79, 354263), (91, 307547), (119, 235183), (221, 126637), (229, 122213), (553, 50609), (1027, 27251), (1343, 20839), (1547, 18091), (1603, 17459), (2977, 9401), (3893, 7189)]