21137904

素因数分解:

$2^4\times 3^2\times {\mathrm{181}}^1\times {\mathrm{811}}^1$

素因数の和:1006

約数の個数: 60

約数和(自身を含む): 59556952

約数和(自身を除く): 38419048

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 181, 362, 543, 724, 811, 1086, 1448, 1622, 1629, 2172, 2433, 2896, 3244, 3258, 4344, 4866, 6488, 6516, 7299, 8688, 9732, 12976, 13032, 14598, 19464, 26064, 29196, 38928, 58392, 116784, 146791, 293582, 440373, 587164, 880746, 1174328, 1321119, 1761492, 2348656, 2642238, 3522984, 5284476, 7045968, 10568952, 21137904]

約数ペア:

[(1, 21137904), (2, 10568952), (3, 7045968), (4, 5284476), (6, 3522984), (8, 2642238), (9, 2348656), (12, 1761492), (16, 1321119), (18, 1174328), (24, 880746), (36, 587164), (48, 440373), (72, 293582), (144, 146791), (181, 116784), (362, 58392), (543, 38928), (724, 29196), (811, 26064), (1086, 19464), (1448, 14598), (1622, 13032), (1629, 12976), (2172, 9732), (2433, 8688), (2896, 7299), (3244, 6516), (3258, 6488), (4344, 4866)]