18653930

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{557}}^1$

素因数の和:778

約数の個数: 32

約数和(自身を含む): 35796816

約数和(自身を除く): 17142886

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 197, 394, 557, 985, 1114, 1970, 2785, 3349, 5570, 6698, 9469, 16745, 18938, 33490, 47345, 94690, 109729, 219458, 548645, 1097290, 1865393, 3730786, 9326965, 18653930]

約数ペア:

[(1, 18653930), (2, 9326965), (5, 3730786), (10, 1865393), (17, 1097290), (34, 548645), (85, 219458), (170, 109729), (197, 94690), (394, 47345), (557, 33490), (985, 18938), (1114, 16745), (1970, 9469), (2785, 6698), (3349, 5570)]