21370965

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{18503}}^1$

素因数の和:18529

約数の個数: 32

約数和(自身を含む): 42633216

約数和(自身を除く): 21262251

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 105, 165, 231, 385, 1155, 18503, 55509, 92515, 129521, 203533, 277545, 388563, 610599, 647605, 1017665, 1424731, 1942815, 3052995, 4274193, 7123655, 21370965]

約数ペア:

[(1, 21370965), (3, 7123655), (5, 4274193), (7, 3052995), (11, 1942815), (15, 1424731), (21, 1017665), (33, 647605), (35, 610599), (55, 388563), (77, 277545), (105, 203533), (165, 129521), (231, 92515), (385, 55509), (1155, 18503)]