18621615

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{293}}^1$

素因数の和:543

約数の個数: 32

約数和(自身を含む): 31610880

約数和(自身を除く): 12989265

約数列:

[1, 3, 5, 15, 19, 57, 95, 223, 285, 293, 669, 879, 1115, 1465, 3345, 4237, 4395, 5567, 12711, 16701, 21185, 27835, 63555, 65339, 83505, 196017, 326695, 980085, 1241441, 3724323, 6207205, 18621615]

約数ペア:

[(1, 18621615), (3, 6207205), (5, 3724323), (15, 1241441), (19, 980085), (57, 326695), (95, 196017), (223, 83505), (285, 65339), (293, 63555), (669, 27835), (879, 21185), (1115, 16701), (1465, 12711), (3345, 5567), (4237, 4395)]