21009942

素因数分解:

$2^1\times 3^4\times {\mathrm{53}}^1\times {\mathrm{2447}}^1$

素因数の和:2514

約数の個数: 40

約数和(自身を含む): 47985696

約数和(自身を除く): 26975754

約数列:

[1, 2, 3, 6, 9, 18, 27, 53, 54, 81, 106, 159, 162, 318, 477, 954, 1431, 2447, 2862, 4293, 4894, 7341, 8586, 14682, 22023, 44046, 66069, 129691, 132138, 198207, 259382, 389073, 396414, 778146, 1167219, 2334438, 3501657, 7003314, 10504971, 21009942]

約数ペア:

[(1, 21009942), (2, 10504971), (3, 7003314), (6, 3501657), (9, 2334438), (18, 1167219), (27, 778146), (53, 396414), (54, 389073), (81, 259382), (106, 198207), (159, 132138), (162, 129691), (318, 66069), (477, 44046), (954, 22023), (1431, 14682), (2447, 8586), (2862, 7341), (4293, 4894)]