7721271

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{131}}^1$

素因数の和:236

約数の個数: 32

約数和(自身を含む): 12038400

約数和(自身を除く): 4317129

約数列:

[1, 3, 9, 27, 37, 59, 111, 131, 177, 333, 393, 531, 999, 1179, 1593, 2183, 3537, 4847, 6549, 7729, 14541, 19647, 23187, 43623, 58941, 69561, 130869, 208683, 285973, 857919, 2573757, 7721271]

約数ペア:

[(1, 7721271), (3, 2573757), (9, 857919), (27, 285973), (37, 208683), (59, 130869), (111, 69561), (131, 58941), (177, 43623), (333, 23187), (393, 19647), (531, 14541), (999, 7729), (1179, 6549), (1593, 4847), (2183, 3537)]