18919648

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{911}}^1$

素因数の和:991

約数の個数: 48

約数和(自身を含む): 41368320

約数和(自身を除く): 22448672

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 59, 88, 118, 176, 236, 352, 472, 649, 911, 944, 1298, 1822, 1888, 2596, 3644, 5192, 7288, 10021, 10384, 14576, 20042, 20768, 29152, 40084, 53749, 80168, 107498, 160336, 214996, 320672, 429992, 591239, 859984, 1182478, 1719968, 2364956, 4729912, 9459824, 18919648]

約数ペア:

[(1, 18919648), (2, 9459824), (4, 4729912), (8, 2364956), (11, 1719968), (16, 1182478), (22, 859984), (32, 591239), (44, 429992), (59, 320672), (88, 214996), (118, 160336), (176, 107498), (236, 80168), (352, 53749), (472, 40084), (649, 29152), (911, 20768), (944, 20042), (1298, 14576), (1822, 10384), (1888, 10021), (2596, 7288), (3644, 5192)]