242854143

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{86951}}^1$

素因数の和:86987

約数の個数: 24

約数和(自身を含む): 396501120

約数和(自身を除く): 153646977

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 2793, 86951, 260853, 608657, 1652069, 1825971, 4260599, 4956207, 11564483, 12781797, 34693449, 80951381, 242854143]

約数ペア:

[(1, 242854143), (3, 80951381), (7, 34693449), (19, 12781797), (21, 11564483), (49, 4956207), (57, 4260599), (133, 1825971), (147, 1652069), (399, 608657), (931, 260853), (2793, 86951)]