21556746

素因数分解:

$2^1\times 3^3\times {\mathrm{617}}^1\times {\mathrm{647}}^1$

素因数の和:1275

約数の個数: 32

約数和(自身を含む): 48055680

約数和(自身を除く): 26498934

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 617, 647, 1234, 1294, 1851, 1941, 3702, 3882, 5553, 5823, 11106, 11646, 16659, 17469, 33318, 34938, 399199, 798398, 1197597, 2395194, 3592791, 7185582, 10778373, 21556746]

約数ペア:

[(1, 21556746), (2, 10778373), (3, 7185582), (6, 3592791), (9, 2395194), (18, 1197597), (27, 798398), (54, 399199), (617, 34938), (647, 33318), (1234, 17469), (1294, 16659), (1851, 11646), (1941, 11106), (3702, 5823), (3882, 5553)]