19890783

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{331}}^1\times {\mathrm{607}}^1$

素因数の和:955

約数の個数: 24

約数和(自身を含む): 31489536

約数和(自身を除く): 11598753

約数列:

[1, 3, 9, 11, 33, 99, 331, 607, 993, 1821, 2979, 3641, 5463, 6677, 10923, 20031, 32769, 60093, 200917, 602751, 1808253, 2210087, 6630261, 19890783]

約数ペア:

[(1, 19890783), (3, 6630261), (9, 2210087), (11, 1808253), (33, 602751), (99, 200917), (331, 60093), (607, 32769), (993, 20031), (1821, 10923), (2979, 6677), (3641, 5463)]