28217295

素因数分解:

$3^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{1061}}^1$

素因数の和:1272

約数の個数: 32

約数和(自身を含む): 50466240

約数和(自身を除く): 22248945

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 197, 591, 985, 1061, 1773, 2955, 3183, 5305, 5319, 8865, 9549, 15915, 26595, 28647, 47745, 143235, 209017, 627051, 1045085, 1881153, 3135255, 5643459, 9405765, 28217295]

約数ペア:

[(1, 28217295), (3, 9405765), (5, 5643459), (9, 3135255), (15, 1881153), (27, 1045085), (45, 627051), (135, 209017), (197, 143235), (591, 47745), (985, 28647), (1061, 26595), (1773, 15915), (2955, 9549), (3183, 8865), (5305, 5319)]