42156747

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{21991}}^1$

素因数の和:22071

約数の個数: 16

約数和(自身を含む): 63336960

約数和(自身を除く): 21180213

約数列:

[1, 3, 9, 27, 71, 213, 639, 1917, 21991, 65973, 197919, 593757, 1561361, 4684083, 14052249, 42156747]

約数ペア:

[(1, 42156747), (3, 14052249), (9, 4684083), (27, 1561361), (71, 593757), (213, 197919), (639, 65973), (1917, 21991)]