21839235

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{1237}}^1$

素因数の和:1363

約数の個数: 32

約数和(自身を含む): 38506752

約数和(自身を除く): 16667517

約数列:

[1, 3, 5, 11, 15, 33, 55, 107, 165, 321, 535, 1177, 1237, 1605, 3531, 3711, 5885, 6185, 13607, 17655, 18555, 40821, 68035, 132359, 204105, 397077, 661795, 1455949, 1985385, 4367847, 7279745, 21839235]

約数ペア:

[(1, 21839235), (3, 7279745), (5, 4367847), (11, 1985385), (15, 1455949), (33, 661795), (55, 397077), (107, 204105), (165, 132359), (321, 68035), (535, 40821), (1177, 18555), (1237, 17655), (1605, 13607), (3531, 6185), (3711, 5885)]