21283545

素因数分解:

$3^1\times 5^1\times {\mathrm{251}}^1\times {\mathrm{5653}}^1$

素因数の和:5912

約数の個数: 16

約数和(自身を含む): 34195392

約数和(自身を除く): 12911847

約数列:

[1, 3, 5, 15, 251, 753, 1255, 3765, 5653, 16959, 28265, 84795, 1418903, 4256709, 7094515, 21283545]

約数ペア:

[(1, 21283545), (3, 7094515), (5, 4256709), (15, 1418903), (251, 84795), (753, 28265), (1255, 16959), (3765, 5653)]