21001455

素因数分解:

$3^2\times 5^1\times {\mathrm{233}}^1\times {\mathrm{2003}}^1$

素因数の和:2247

約数の個数: 24

約数和(自身を含む): 36577008

約数和(自身を除く): 15575553

約数列:

[1, 3, 5, 9, 15, 45, 233, 699, 1165, 2003, 2097, 3495, 6009, 10015, 10485, 18027, 30045, 90135, 466699, 1400097, 2333495, 4200291, 7000485, 21001455]

約数ペア:

[(1, 21001455), (3, 7000485), (5, 4200291), (9, 2333495), (15, 1400097), (45, 466699), (233, 90135), (699, 30045), (1165, 18027), (2003, 10485), (2097, 10015), (3495, 6009)]