21318176

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{853}}^1$

素因数の和:945

約数の個数: 48

約数和(自身を含む): 46484928

約数和(自身を除く): 25166752

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 71, 88, 142, 176, 284, 352, 568, 781, 853, 1136, 1562, 1706, 2272, 3124, 3412, 6248, 6824, 9383, 12496, 13648, 18766, 24992, 27296, 37532, 60563, 75064, 121126, 150128, 242252, 300256, 484504, 666193, 969008, 1332386, 1938016, 2664772, 5329544, 10659088, 21318176]

約数ペア:

[(1, 21318176), (2, 10659088), (4, 5329544), (8, 2664772), (11, 1938016), (16, 1332386), (22, 969008), (32, 666193), (44, 484504), (71, 300256), (88, 242252), (142, 150128), (176, 121126), (284, 75064), (352, 60563), (568, 37532), (781, 27296), (853, 24992), (1136, 18766), (1562, 13648), (1706, 12496), (2272, 9383), (3124, 6824), (3412, 6248)]