21858304

素因数分解:

$2^{11}\times {\mathrm{13}}^1\times {\mathrm{821}}^1$

素因数の和:856

約数の個数: 48

約数和(自身を含む): 47125260

約数和(自身を除く): 25266956

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 416, 512, 821, 832, 1024, 1642, 1664, 2048, 3284, 3328, 6568, 6656, 10673, 13136, 13312, 21346, 26272, 26624, 42692, 52544, 85384, 105088, 170768, 210176, 341536, 420352, 683072, 840704, 1366144, 1681408, 2732288, 5464576, 10929152, 21858304]

約数ペア:

[(1, 21858304), (2, 10929152), (4, 5464576), (8, 2732288), (13, 1681408), (16, 1366144), (26, 840704), (32, 683072), (52, 420352), (64, 341536), (104, 210176), (128, 170768), (208, 105088), (256, 85384), (416, 52544), (512, 42692), (821, 26624), (832, 26272), (1024, 21346), (1642, 13312), (1664, 13136), (2048, 10673), (3284, 6656), (3328, 6568)]