20851938

素因数分解:

$2^1\times 3^3\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{163}}^1$

素因数の和:300

約数の個数: 64

約数和(自身を含む): 49121280

約数和(自身を除く): 28269342

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 46, 54, 69, 103, 138, 163, 206, 207, 309, 326, 414, 489, 618, 621, 927, 978, 1242, 1467, 1854, 2369, 2781, 2934, 3749, 4401, 4738, 5562, 7107, 7498, 8802, 11247, 14214, 16789, 21321, 22494, 33578, 33741, 42642, 50367, 63963, 67482, 100734, 101223, 127926, 151101, 202446, 302202, 386147, 453303, 772294, 906606, 1158441, 2316882, 3475323, 6950646, 10425969, 20851938]

約数ペア:

[(1, 20851938), (2, 10425969), (3, 6950646), (6, 3475323), (9, 2316882), (18, 1158441), (23, 906606), (27, 772294), (46, 453303), (54, 386147), (69, 302202), (103, 202446), (138, 151101), (163, 127926), (206, 101223), (207, 100734), (309, 67482), (326, 63963), (414, 50367), (489, 42642), (618, 33741), (621, 33578), (927, 22494), (978, 21321), (1242, 16789), (1467, 14214), (1854, 11247), (2369, 8802), (2781, 7498), (2934, 7107), (3749, 5562), (4401, 4738)]