20987424

素因数分解:

$2^5\times 3^5\times {\mathrm{2699}}^1$

素因数の和:2724

約数の個数: 72

約数和(自身を含む): 61916400

約数和(自身を除く): 40928976

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 72, 81, 96, 108, 144, 162, 216, 243, 288, 324, 432, 486, 648, 864, 972, 1296, 1944, 2592, 2699, 3888, 5398, 7776, 8097, 10796, 16194, 21592, 24291, 32388, 43184, 48582, 64776, 72873, 86368, 97164, 129552, 145746, 194328, 218619, 259104, 291492, 388656, 437238, 582984, 655857, 777312, 874476, 1165968, 1311714, 1748952, 2331936, 2623428, 3497904, 5246856, 6995808, 10493712, 20987424]

約数ペア:

[(1, 20987424), (2, 10493712), (3, 6995808), (4, 5246856), (6, 3497904), (8, 2623428), (9, 2331936), (12, 1748952), (16, 1311714), (18, 1165968), (24, 874476), (27, 777312), (32, 655857), (36, 582984), (48, 437238), (54, 388656), (72, 291492), (81, 259104), (96, 218619), (108, 194328), (144, 145746), (162, 129552), (216, 97164), (243, 86368), (288, 72873), (324, 64776), (432, 48582), (486, 43184), (648, 32388), (864, 24291), (972, 21592), (1296, 16194), (1944, 10796), (2592, 8097), (2699, 7776), (3888, 5398)]