21534315

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{6869}}^1$

素因数の和:6907

約数の個数: 32

約数和(自身を含む): 39571200

約数和(自身を除く): 18036885

約数列:

[1, 3, 5, 11, 15, 19, 33, 55, 57, 95, 165, 209, 285, 627, 1045, 3135, 6869, 20607, 34345, 75559, 103035, 130511, 226677, 377795, 391533, 652555, 1133385, 1435621, 1957665, 4306863, 7178105, 21534315]

約数ペア:

[(1, 21534315), (3, 7178105), (5, 4306863), (11, 1957665), (15, 1435621), (19, 1133385), (33, 652555), (55, 391533), (57, 377795), (95, 226677), (165, 130511), (209, 103035), (285, 75559), (627, 34345), (1045, 20607), (3135, 6869)]