21992530

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{1489}}^1$

素因数の和:1714

約数の個数: 32

約数和(自身を含む): 45486720

約数和(自身を除く): 23494190

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 211, 422, 1055, 1477, 1489, 2110, 2954, 2978, 7385, 7445, 10423, 14770, 14890, 20846, 52115, 104230, 314179, 628358, 1570895, 2199253, 3141790, 4398506, 10996265, 21992530]

約数ペア:

[(1, 21992530), (2, 10996265), (5, 4398506), (7, 3141790), (10, 2199253), (14, 1570895), (35, 628358), (70, 314179), (211, 104230), (422, 52115), (1055, 20846), (1477, 14890), (1489, 14770), (2110, 10423), (2954, 7445), (2978, 7385)]