21185538

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{1249}}^1$

素因数の和:1522

約数の個数: 32

約数和(自身を含む): 46440000

約数和(自身を除く): 25254462

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 257, 514, 771, 1249, 1542, 2498, 2827, 3747, 5654, 7494, 8481, 13739, 16962, 27478, 41217, 82434, 320993, 641986, 962979, 1925958, 3530923, 7061846, 10592769, 21185538]

約数ペア:

[(1, 21185538), (2, 10592769), (3, 7061846), (6, 3530923), (11, 1925958), (22, 962979), (33, 641986), (66, 320993), (257, 82434), (514, 41217), (771, 27478), (1249, 16962), (1542, 13739), (2498, 8481), (2827, 7494), (3747, 5654)]