21702310

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{797}}^1$

素因数の和:1200

約数の個数: 32

約数和(自身を含む): 44815680

約数和(自身を除く): 23113370

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 389, 778, 797, 1594, 1945, 2723, 3890, 3985, 5446, 5579, 7970, 11158, 13615, 27230, 27895, 55790, 310033, 620066, 1550165, 2170231, 3100330, 4340462, 10851155, 21702310]

約数ペア:

[(1, 21702310), (2, 10851155), (5, 4340462), (7, 3100330), (10, 2170231), (14, 1550165), (35, 620066), (70, 310033), (389, 55790), (778, 27895), (797, 27230), (1594, 13615), (1945, 11158), (2723, 7970), (3890, 5579), (3985, 5446)]