21385963

素因数分解:

${\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{1049}}^1$

素因数の和:1134

約数の個数: 16

約数和(自身を含む): 23940000

約数和(自身を除く): 2554037

約数列:

[1, 19, 29, 37, 551, 703, 1049, 1073, 19931, 20387, 30421, 38813, 577999, 737447, 1125577, 21385963]

約数ペア:

[(1, 21385963), (19, 1125577), (29, 737447), (37, 577999), (551, 38813), (703, 30421), (1049, 20387), (1073, 19931)]