21919856

素因数分解:

$2^4\times 7^2\times {\mathrm{73}}^1\times {\mathrm{383}}^1$

素因数の和:478

約数の個数: 60

約数和(自身を含む): 50211072

約数和(自身を除く): 28291216

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 73, 98, 112, 146, 196, 292, 383, 392, 511, 584, 766, 784, 1022, 1168, 1532, 2044, 2681, 3064, 3577, 4088, 5362, 6128, 7154, 8176, 10724, 14308, 18767, 21448, 27959, 28616, 37534, 42896, 55918, 57232, 75068, 111836, 150136, 195713, 223672, 300272, 391426, 447344, 782852, 1369991, 1565704, 2739982, 3131408, 5479964, 10959928, 21919856]

約数ペア:

[(1, 21919856), (2, 10959928), (4, 5479964), (7, 3131408), (8, 2739982), (14, 1565704), (16, 1369991), (28, 782852), (49, 447344), (56, 391426), (73, 300272), (98, 223672), (112, 195713), (146, 150136), (196, 111836), (292, 75068), (383, 57232), (392, 55918), (511, 42896), (584, 37534), (766, 28616), (784, 27959), (1022, 21448), (1168, 18767), (1532, 14308), (2044, 10724), (2681, 8176), (3064, 7154), (3577, 6128), (4088, 5362)]