18947968

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{193}}^1$

素因数の和:279

約数の個数: 64

約数和(自身を含む): 41554800

約数和(自身を除く): 22606832

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 59, 64, 104, 118, 128, 193, 208, 236, 386, 416, 472, 767, 772, 832, 944, 1534, 1544, 1664, 1888, 2509, 3068, 3088, 3776, 5018, 6136, 6176, 7552, 10036, 11387, 12272, 12352, 20072, 22774, 24544, 24704, 40144, 45548, 49088, 80288, 91096, 98176, 148031, 160576, 182192, 296062, 321152, 364384, 592124, 728768, 1184248, 1457536, 2368496, 4736992, 9473984, 18947968]

約数ペア:

[(1, 18947968), (2, 9473984), (4, 4736992), (8, 2368496), (13, 1457536), (16, 1184248), (26, 728768), (32, 592124), (52, 364384), (59, 321152), (64, 296062), (104, 182192), (118, 160576), (128, 148031), (193, 98176), (208, 91096), (236, 80288), (386, 49088), (416, 45548), (472, 40144), (767, 24704), (772, 24544), (832, 22774), (944, 20072), (1534, 12352), (1544, 12272), (1664, 11387), (1888, 10036), (2509, 7552), (3068, 6176), (3088, 6136), (3776, 5018)]