20857242

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{1163}}^1$

素因数の和:1243

約数の個数: 48

約数和(自身を含む): 49362912

約数和(自身を除く): 28505670

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 61, 98, 122, 147, 183, 294, 366, 427, 854, 1163, 1281, 2326, 2562, 2989, 3489, 5978, 6978, 8141, 8967, 16282, 17934, 24423, 48846, 56987, 70943, 113974, 141886, 170961, 212829, 341922, 425658, 496601, 993202, 1489803, 2979606, 3476207, 6952414, 10428621, 20857242]

約数ペア:

[(1, 20857242), (2, 10428621), (3, 6952414), (6, 3476207), (7, 2979606), (14, 1489803), (21, 993202), (42, 496601), (49, 425658), (61, 341922), (98, 212829), (122, 170961), (147, 141886), (183, 113974), (294, 70943), (366, 56987), (427, 48846), (854, 24423), (1163, 17934), (1281, 16282), (2326, 8967), (2562, 8141), (2989, 6978), (3489, 5978)]