291249042

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{990643}}^1$

素因数の和:990662

約数の個数: 24

約数和(自身を含む): 677600496

約数和(自身を除く): 386351454

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 147, 294, 990643, 1981286, 2971929, 5943858, 6934501, 13869002, 20803503, 41607006, 48541507, 97083014, 145624521, 291249042]

約数ペア:

[(1, 291249042), (2, 145624521), (3, 97083014), (6, 48541507), (7, 41607006), (14, 20803503), (21, 13869002), (42, 6934501), (49, 5943858), (98, 2971929), (147, 1981286), (294, 990643)]