21137376

素因数分解:

$2^5\times 3^1\times {\mathrm{13}}^1\times {\mathrm{16937}}^1$

素因数の和:16963

約数の個数: 48

約数和(自身を含む): 59757264

約数和(自身を除く): 38619888

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 78, 96, 104, 156, 208, 312, 416, 624, 1248, 16937, 33874, 50811, 67748, 101622, 135496, 203244, 220181, 270992, 406488, 440362, 541984, 660543, 812976, 880724, 1321086, 1625952, 1761448, 2642172, 3522896, 5284344, 7045792, 10568688, 21137376]

約数ペア:

[(1, 21137376), (2, 10568688), (3, 7045792), (4, 5284344), (6, 3522896), (8, 2642172), (12, 1761448), (13, 1625952), (16, 1321086), (24, 880724), (26, 812976), (32, 660543), (39, 541984), (48, 440362), (52, 406488), (78, 270992), (96, 220181), (104, 203244), (156, 135496), (208, 101622), (312, 67748), (416, 50811), (624, 33874), (1248, 16937)]