18913425

素因数分解:

$3^1\times 5^2\times {\mathrm{421}}^1\times {\mathrm{599}}^1$

素因数の和:1033

約数の個数: 24

約数和(自身を含む): 31396800

約数和(自身を除く): 12483375

約数列:

[1, 3, 5, 15, 25, 75, 421, 599, 1263, 1797, 2105, 2995, 6315, 8985, 10525, 14975, 31575, 44925, 252179, 756537, 1260895, 3782685, 6304475, 18913425]

約数ペア:

[(1, 18913425), (3, 6304475), (5, 3782685), (15, 1260895), (25, 756537), (75, 252179), (421, 44925), (599, 31575), (1263, 14975), (1797, 10525), (2105, 8985), (2995, 6315)]