16640295

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{439}}^1$

素因数の和:492

約数の個数: 48

約数和(自身を含む): 32186880

約数和(自身を除く): 15546585

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 95, 105, 133, 285, 361, 399, 439, 665, 1083, 1317, 1805, 1995, 2195, 2527, 3073, 5415, 6585, 7581, 8341, 9219, 12635, 15365, 25023, 37905, 41705, 46095, 58387, 125115, 158479, 175161, 291935, 475437, 792395, 875805, 1109353, 2377185, 3328059, 5546765, 16640295]

約数ペア:

[(1, 16640295), (3, 5546765), (5, 3328059), (7, 2377185), (15, 1109353), (19, 875805), (21, 792395), (35, 475437), (57, 291935), (95, 175161), (105, 158479), (133, 125115), (285, 58387), (361, 46095), (399, 41705), (439, 37905), (665, 25023), (1083, 15365), (1317, 12635), (1805, 9219), (1995, 8341), (2195, 7581), (2527, 6585), (3073, 5415)]