20421394

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{179}}^1\times {\mathrm{281}}^1$

素因数の和:498

約数の個数: 32

約数和(自身を含む): 36547200

約数和(自身を除く): 16125806

約数列:

[1, 2, 7, 14, 29, 58, 179, 203, 281, 358, 406, 562, 1253, 1967, 2506, 3934, 5191, 8149, 10382, 16298, 36337, 50299, 57043, 72674, 100598, 114086, 352093, 704186, 1458671, 2917342, 10210697, 20421394]

約数ペア:

[(1, 20421394), (2, 10210697), (7, 2917342), (14, 1458671), (29, 704186), (58, 352093), (179, 114086), (203, 100598), (281, 72674), (358, 57043), (406, 50299), (562, 36337), (1253, 16298), (1967, 10382), (2506, 8149), (3934, 5191)]