1921394241

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{381911}}^1$

素因数の和:381973

約数の個数: 24

約数和(自身を含む): 3058351296

約数和(自身を除く): 1136957055

約数列:

[1, 3, 9, 13, 39, 43, 117, 129, 387, 559, 1677, 5031, 381911, 1145733, 3437199, 4964843, 14894529, 16422173, 44683587, 49266519, 147799557, 213488249, 640464747, 1921394241]

約数ペア:

[(1, 1921394241), (3, 640464747), (9, 213488249), (13, 147799557), (39, 49266519), (43, 44683587), (117, 16422173), (129, 14894529), (387, 4964843), (559, 3437199), (1677, 1145733), (5031, 381911)]