21712858

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{15443}}^1$

素因数の和:15501

約数の個数: 16

約数和(自身を含む): 35212320

約数和(自身を除く): 13499462

約数列:

[1, 2, 19, 37, 38, 74, 703, 1406, 15443, 30886, 293417, 571391, 586834, 1142782, 10856429, 21712858]

約数ペア:

[(1, 21712858), (2, 10856429), (19, 1142782), (37, 586834), (38, 571391), (74, 293417), (703, 30886), (1406, 15443)]