19710790

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{9431}}^1$

素因数の和:9468

約数の個数: 32

約数和(自身を含む): 40746240

約数和(自身を除く): 21035450

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 190, 209, 418, 1045, 2090, 9431, 18862, 47155, 94310, 103741, 179189, 207482, 358378, 518705, 895945, 1037410, 1791890, 1971079, 3942158, 9855395, 19710790]

約数ペア:

[(1, 19710790), (2, 9855395), (5, 3942158), (10, 1971079), (11, 1791890), (19, 1037410), (22, 895945), (38, 518705), (55, 358378), (95, 207482), (110, 179189), (190, 103741), (209, 94310), (418, 47155), (1045, 18862), (2090, 9431)]