21258180

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{39367}}^1$

素因数の和:39385

約数の個数: 48

約数和(自身を含む): 66138240

約数和(自身を除く): 44880060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 39367, 78734, 118101, 157468, 196835, 236202, 354303, 393670, 472404, 590505, 708606, 787340, 1062909, 1181010, 1417212, 1771515, 2125818, 2362020, 3543030, 4251636, 5314545, 7086060, 10629090, 21258180]

約数ペア:

[(1, 21258180), (2, 10629090), (3, 7086060), (4, 5314545), (5, 4251636), (6, 3543030), (9, 2362020), (10, 2125818), (12, 1771515), (15, 1417212), (18, 1181010), (20, 1062909), (27, 787340), (30, 708606), (36, 590505), (45, 472404), (54, 393670), (60, 354303), (90, 236202), (108, 196835), (135, 157468), (180, 118101), (270, 78734), (540, 39367)]