9978381

素因数分解:

$3^2\times 7^1\times {\mathrm{149}}^1\times {\mathrm{1063}}^1$

素因数の和:1225

約数の個数: 24

約数和(自身を含む): 16598400

約数和(自身を除く): 6620019

約数列:

[1, 3, 7, 9, 21, 63, 149, 447, 1043, 1063, 1341, 3129, 3189, 7441, 9387, 9567, 22323, 66969, 158387, 475161, 1108709, 1425483, 3326127, 9978381]

約数ペア:

[(1, 9978381), (3, 3326127), (7, 1425483), (9, 1108709), (21, 475161), (63, 158387), (149, 66969), (447, 22323), (1043, 9567), (1063, 9387), (1341, 7441), (3129, 3189)]