21041745

素因数分解:

$3^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{16901}}^1$

素因数の和:16992

約数の個数: 16

約数和(自身を含む): 34074432

約数和(自身を除く): 13032687

約数列:

[1, 3, 5, 15, 83, 249, 415, 1245, 16901, 50703, 84505, 253515, 1402783, 4208349, 7013915, 21041745]

約数ペア:

[(1, 21041745), (3, 7013915), (5, 4208349), (15, 1402783), (83, 253515), (249, 84505), (415, 50703), (1245, 16901)]