21678768

素因数分解:

$2^4\times 3^2\times {\mathrm{151}}^1\times {\mathrm{997}}^1$

素因数の和:1162

約数の個数: 60

約数和(自身を含む): 61133488

約数和(自身を除く): 39454720

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 151, 302, 453, 604, 906, 997, 1208, 1359, 1812, 1994, 2416, 2718, 2991, 3624, 3988, 5436, 5982, 7248, 7976, 8973, 10872, 11964, 15952, 17946, 21744, 23928, 35892, 47856, 71784, 143568, 150547, 301094, 451641, 602188, 903282, 1204376, 1354923, 1806564, 2408752, 2709846, 3613128, 5419692, 7226256, 10839384, 21678768]

約数ペア:

[(1, 21678768), (2, 10839384), (3, 7226256), (4, 5419692), (6, 3613128), (8, 2709846), (9, 2408752), (12, 1806564), (16, 1354923), (18, 1204376), (24, 903282), (36, 602188), (48, 451641), (72, 301094), (144, 150547), (151, 143568), (302, 71784), (453, 47856), (604, 35892), (906, 23928), (997, 21744), (1208, 17946), (1359, 15952), (1812, 11964), (1994, 10872), (2416, 8973), (2718, 7976), (2991, 7248), (3624, 5982), (3988, 5436)]