81321918

素因数分解:

$2^1\times 3^1\times {\mathrm{131}}^1\times {\mathrm{157}}^1\times {\mathrm{659}}^1$

素因数の和:952

約数の個数: 32

約数和(自身を含む): 165179520

約数和(自身を除く): 83857602

約数列:

[1, 2, 3, 6, 131, 157, 262, 314, 393, 471, 659, 786, 942, 1318, 1977, 3954, 20567, 41134, 61701, 86329, 103463, 123402, 172658, 206926, 258987, 310389, 517974, 620778, 13553653, 27107306, 40660959, 81321918]

約数ペア:

[(1, 81321918), (2, 40660959), (3, 27107306), (6, 13553653), (131, 620778), (157, 517974), (262, 310389), (314, 258987), (393, 206926), (471, 172658), (659, 123402), (786, 103463), (942, 86329), (1318, 61701), (1977, 41134), (3954, 20567)]