21873897

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{251}}^1\times {\mathrm{421}}^1$

素因数の和:701

約数の個数: 24

約数和(自身を含む): 33179328

約数和(自身を除く): 11305431

約数列:

[1, 3, 9, 23, 69, 207, 251, 421, 753, 1263, 2259, 3789, 5773, 9683, 17319, 29049, 51957, 87147, 105671, 317013, 951039, 2430433, 7291299, 21873897]

約数ペア:

[(1, 21873897), (3, 7291299), (9, 2430433), (23, 951039), (69, 317013), (207, 105671), (251, 87147), (421, 51957), (753, 29049), (1263, 17319), (2259, 9683), (3789, 5773)]