121221898

素因数分解:

$2^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{157}}^1\times {\mathrm{421}}^1$

素因数の和:718

約数の個数: 32

約数和(自身を含む): 211229568

約数和(自身を除く): 90007670

約数列:

[1, 2, 7, 14, 131, 157, 262, 314, 421, 842, 917, 1099, 1834, 2198, 2947, 5894, 20567, 41134, 55151, 66097, 110302, 132194, 143969, 287938, 386057, 462679, 772114, 925358, 8658707, 17317414, 60610949, 121221898]

約数ペア:

[(1, 121221898), (2, 60610949), (7, 17317414), (14, 8658707), (131, 925358), (157, 772114), (262, 462679), (314, 386057), (421, 287938), (842, 143969), (917, 132194), (1099, 110302), (1834, 66097), (2198, 55151), (2947, 41134), (5894, 20567)]