21536816

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{6203}}^1$

素因数の和:6249

約数の個数: 40

約数和(自身を含む): 49234944

約数和(自身を除く): 27698128

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 62, 112, 124, 217, 248, 434, 496, 868, 1736, 3472, 6203, 12406, 24812, 43421, 49624, 86842, 99248, 173684, 192293, 347368, 384586, 694736, 769172, 1346051, 1538344, 2692102, 3076688, 5384204, 10768408, 21536816]

約数ペア:

[(1, 21536816), (2, 10768408), (4, 5384204), (7, 3076688), (8, 2692102), (14, 1538344), (16, 1346051), (28, 769172), (31, 694736), (56, 384586), (62, 347368), (112, 192293), (124, 173684), (217, 99248), (248, 86842), (434, 49624), (496, 43421), (868, 24812), (1736, 12406), (3472, 6203)]