20987068

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{239}}^1\times {\mathrm{757}}^1$

素因数の和:1029

約数の個数: 24

約数和(自身を含む): 38203200

約数和(自身を除く): 17216132

約数列:

[1, 2, 4, 29, 58, 116, 239, 478, 757, 956, 1514, 3028, 6931, 13862, 21953, 27724, 43906, 87812, 180923, 361846, 723692, 5246767, 10493534, 20987068]

約数ペア:

[(1, 20987068), (2, 10493534), (4, 5246767), (29, 723692), (58, 361846), (116, 180923), (239, 87812), (478, 43906), (757, 27724), (956, 21953), (1514, 13862), (3028, 6931)]