20743248

素因数分解:

$2^4\times 3^1\times {\mathrm{139}}^1\times {\mathrm{3109}}^1$

素因数の和:3259

約数の個数: 40

約数和(自身を含む): 53989600

約数和(自身を除く): 33246352

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 139, 278, 417, 556, 834, 1112, 1668, 2224, 3109, 3336, 6218, 6672, 9327, 12436, 18654, 24872, 37308, 49744, 74616, 149232, 432151, 864302, 1296453, 1728604, 2592906, 3457208, 5185812, 6914416, 10371624, 20743248]

約数ペア:

[(1, 20743248), (2, 10371624), (3, 6914416), (4, 5185812), (6, 3457208), (8, 2592906), (12, 1728604), (16, 1296453), (24, 864302), (48, 432151), (139, 149232), (278, 74616), (417, 49744), (556, 37308), (834, 24872), (1112, 18654), (1668, 12436), (2224, 9327), (3109, 6672), (3336, 6218)]