1900757691

素因数分解:

$3^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{213977}}^1$

素因数の和:214040

約数の個数: 32

約数和(自身を含む): 3286702080

約数和(自身を除く): 1385944389

約数列:

[1, 3, 7, 9, 21, 27, 47, 63, 141, 189, 329, 423, 987, 1269, 2961, 8883, 213977, 641931, 1497839, 1925793, 4493517, 5777379, 10056919, 13480551, 30170757, 40441653, 70398433, 90512271, 211195299, 271536813, 633585897, 1900757691]

約数ペア:

[(1, 1900757691), (3, 633585897), (7, 271536813), (9, 211195299), (21, 90512271), (27, 70398433), (47, 40441653), (63, 30170757), (141, 13480551), (189, 10056919), (329, 5777379), (423, 4493517), (987, 1925793), (1269, 1497839), (2961, 641931), (8883, 213977)]