20497274

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{1213}}^1$

素因数の和:1310

約数の個数: 32

約数和(自身を含む): 37760256

約数和(自身を除く): 17262982

約数列:

[1, 2, 7, 14, 17, 34, 71, 119, 142, 238, 497, 994, 1207, 1213, 2414, 2426, 8449, 8491, 16898, 16982, 20621, 41242, 86123, 144347, 172246, 288694, 602861, 1205722, 1464091, 2928182, 10248637, 20497274]

約数ペア:

[(1, 20497274), (2, 10248637), (7, 2928182), (14, 1464091), (17, 1205722), (34, 602861), (71, 288694), (119, 172246), (142, 144347), (238, 86123), (497, 41242), (994, 20621), (1207, 16982), (1213, 16898), (2414, 8491), (2426, 8449)]