20454309

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{151}}^1\times {\mathrm{173}}^1$

素因数の和:362

約数の個数: 32

約数和(自身を含む): 31737600

約数和(自身を除く): 11283291

約数列:

[1, 3, 9, 27, 29, 87, 151, 173, 261, 453, 519, 783, 1359, 1557, 4077, 4379, 4671, 5017, 13137, 15051, 26123, 39411, 45153, 78369, 118233, 135459, 235107, 705321, 757567, 2272701, 6818103, 20454309]

約数ペア:

[(1, 20454309), (3, 6818103), (9, 2272701), (27, 757567), (29, 705321), (87, 235107), (151, 135459), (173, 118233), (261, 78369), (453, 45153), (519, 39411), (783, 26123), (1359, 15051), (1557, 13137), (4077, 5017), (4379, 4671)]