21336105

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{11953}}^1$

素因数の和:11985

約数の個数: 32

約数和(自身を含む): 41313024

約数和(自身を除く): 19976919

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 51, 85, 105, 119, 255, 357, 595, 1785, 11953, 35859, 59765, 83671, 179295, 203201, 251013, 418355, 609603, 1016005, 1255065, 1422407, 3048015, 4267221, 7112035, 21336105]

約数ペア:

[(1, 21336105), (3, 7112035), (5, 4267221), (7, 3048015), (15, 1422407), (17, 1255065), (21, 1016005), (35, 609603), (51, 418355), (85, 251013), (105, 203201), (119, 179295), (255, 83671), (357, 59765), (595, 35859), (1785, 11953)]