18004995

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{8513}}^1$

素因数の和:8571

約数の個数: 24

約数和(自身を含む): 31876416

約数和(自身を除く): 13871421

約数列:

[1, 3, 5, 9, 15, 45, 47, 141, 235, 423, 705, 2115, 8513, 25539, 42565, 76617, 127695, 383085, 400111, 1200333, 2000555, 3600999, 6001665, 18004995]

約数ペア:

[(1, 18004995), (3, 6001665), (5, 3600999), (9, 2000555), (15, 1200333), (45, 400111), (47, 383085), (141, 127695), (235, 76617), (423, 42565), (705, 25539), (2115, 8513)]