20684388

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{257}}^1\times {\mathrm{353}}^1$

素因数の和:636

約数の個数: 48

約数和(自身を含む): 51145920

約数和(自身を除く): 30461532

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 114, 228, 257, 353, 514, 706, 771, 1028, 1059, 1412, 1542, 2118, 3084, 4236, 4883, 6707, 9766, 13414, 14649, 19532, 20121, 26828, 29298, 40242, 58596, 80484, 90721, 181442, 272163, 362884, 544326, 1088652, 1723699, 3447398, 5171097, 6894796, 10342194, 20684388]

約数ペア:

[(1, 20684388), (2, 10342194), (3, 6894796), (4, 5171097), (6, 3447398), (12, 1723699), (19, 1088652), (38, 544326), (57, 362884), (76, 272163), (114, 181442), (228, 90721), (257, 80484), (353, 58596), (514, 40242), (706, 29298), (771, 26828), (1028, 20121), (1059, 19532), (1412, 14649), (1542, 13414), (2118, 9766), (3084, 6707), (4236, 4883)]