19994409

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{167}}^1\times {\mathrm{251}}^1$

素因数の和:477

約数の個数: 24

約数和(自身を含む): 29719872

約数和(自身を除く): 9725463

約数列:

[1, 3, 9, 53, 159, 167, 251, 477, 501, 753, 1503, 2259, 8851, 13303, 26553, 39909, 41917, 79659, 119727, 125751, 377253, 2221601, 6664803, 19994409]

約数ペア:

[(1, 19994409), (3, 6664803), (9, 2221601), (53, 377253), (159, 125751), (167, 119727), (251, 79659), (477, 41917), (501, 39909), (753, 26553), (1503, 13303), (2259, 8851)]