20665206

素因数分解:

$2^1\times 3^5\times {\mathrm{101}}^1\times {\mathrm{421}}^1$

素因数の和:539

約数の個数: 48

約数和(自身を含む): 47004048

約数和(自身を除く): 26338842

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 101, 162, 202, 243, 303, 421, 486, 606, 842, 909, 1263, 1818, 2526, 2727, 3789, 5454, 7578, 8181, 11367, 16362, 22734, 24543, 34101, 42521, 49086, 68202, 85042, 102303, 127563, 204606, 255126, 382689, 765378, 1148067, 2296134, 3444201, 6888402, 10332603, 20665206]

約数ペア:

[(1, 20665206), (2, 10332603), (3, 6888402), (6, 3444201), (9, 2296134), (18, 1148067), (27, 765378), (54, 382689), (81, 255126), (101, 204606), (162, 127563), (202, 102303), (243, 85042), (303, 68202), (421, 49086), (486, 42521), (606, 34101), (842, 24543), (909, 22734), (1263, 16362), (1818, 11367), (2526, 8181), (2727, 7578), (3789, 5454)]