19897323

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{457}}^1\times {\mathrm{631}}^1$

素因数の和:1114

約数の個数: 16

約数和(自身を含む): 27787776

約数和(自身を除く): 7890453

約数列:

[1, 3, 23, 69, 457, 631, 1371, 1893, 10511, 14513, 31533, 43539, 288367, 865101, 6632441, 19897323]

約数ペア:

[(1, 19897323), (3, 6632441), (23, 865101), (69, 288367), (457, 43539), (631, 31533), (1371, 14513), (1893, 10511)]