2191215

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{661}}^1$

素因数の和:699

約数の個数: 32

約数和(自身を含む): 4003776

約数和(自身を除く): 1812561

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 65, 85, 195, 221, 255, 661, 663, 1105, 1983, 3305, 3315, 8593, 9915, 11237, 25779, 33711, 42965, 56185, 128895, 146081, 168555, 438243, 730405, 2191215]

約数ペア:

[(1, 2191215), (3, 730405), (5, 438243), (13, 168555), (15, 146081), (17, 128895), (39, 56185), (51, 42965), (65, 33711), (85, 25779), (195, 11237), (221, 9915), (255, 8593), (661, 3315), (663, 3305), (1105, 1983)]