21929553

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{257}}^1\times {\mathrm{499}}^1$

素因数の和:781

約数の個数: 24

約数和(自身を含む): 33540000

約数和(自身を除く): 11610447

約数列:

[1, 3, 9, 19, 57, 171, 257, 499, 771, 1497, 2313, 4491, 4883, 9481, 14649, 28443, 43947, 85329, 128243, 384729, 1154187, 2436617, 7309851, 21929553]

約数ペア:

[(1, 21929553), (3, 7309851), (9, 2436617), (19, 1154187), (57, 384729), (171, 128243), (257, 85329), (499, 43947), (771, 28443), (1497, 14649), (2313, 9481), (4491, 4883)]