18909243

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{167}}^1\times {\mathrm{547}}^1$

素因数の和:743

約数の個数: 24

約数和(自身を含む): 28723968

約数和(自身を除く): 9814725

約数列:

[1, 3, 9, 23, 69, 167, 207, 501, 547, 1503, 1641, 3841, 4923, 11523, 12581, 34569, 37743, 91349, 113229, 274047, 822141, 2101027, 6303081, 18909243]

約数ペア:

[(1, 18909243), (3, 6303081), (9, 2101027), (23, 822141), (69, 274047), (167, 113229), (207, 91349), (501, 37743), (547, 34569), (1503, 12581), (1641, 11523), (3841, 4923)]