221315.0000000

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1319}}^1$

素因数の和:1363

約数の個数: 32

約数和(自身を含む): 11404800

約数和(自身を除く): 5014245

約数列:

[1, 3, 5, 15, 17, 19, 51, 57, 85, 95, 255, 285, 323, 969, 1319, 1615, 3957, 4845, 6595, 19785, 22423, 25061, 67269, 75183, 112115, 125305, 336345, 375915, 426037, 1278111, 2130185, 6390555]

約数ペア:

[(1, 6390555), (3, 2130185), (5, 1278111), (15, 426037), (17, 375915), (19, 336345), (51, 125305), (57, 112115), (85, 75183), (95, 67269), (255, 25061), (285, 22423), (323, 19785), (969, 6595), (1319, 4845), (1615, 3957)]