28954989

素因数分解:

$3^4\times 7^1\times {\mathrm{223}}^1\times {\mathrm{229}}^1$

素因数の和:471

約数の個数: 40

約数和(自身を含む): 49871360

約数和(自身を除く): 20916371

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 223, 229, 567, 669, 687, 1561, 1603, 2007, 2061, 4683, 4809, 6021, 6183, 14049, 14427, 18063, 18549, 42147, 43281, 51067, 126441, 129843, 153201, 357469, 459603, 1072407, 1378809, 3217221, 4136427, 9651663, 28954989]

約数ペア:

[(1, 28954989), (3, 9651663), (7, 4136427), (9, 3217221), (21, 1378809), (27, 1072407), (63, 459603), (81, 357469), (189, 153201), (223, 129843), (229, 126441), (567, 51067), (669, 43281), (687, 42147), (1561, 18549), (1603, 18063), (2007, 14427), (2061, 14049), (4683, 6183), (4809, 6021)]