420275457

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{141937}}^1$

素因数の和:141997

約数の個数: 24

約数和(自身を含む): 708554496

約数和(自身を除く): 288279039

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 987, 2961, 141937, 425811, 993559, 1277433, 2980677, 6671039, 8942031, 20013117, 46697273, 60039351, 140091819, 420275457]

約数ペア:

[(1, 420275457), (3, 140091819), (7, 60039351), (9, 46697273), (21, 20013117), (47, 8942031), (63, 6671039), (141, 2980677), (329, 1277433), (423, 993559), (987, 425811), (2961, 141937)]