21982268

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{479}}^1$

素因数の和:650

約数の個数: 48

約数和(自身を含む): 48384000

約数和(自身を除く): 26401732

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 149, 154, 298, 308, 479, 596, 958, 1043, 1639, 1916, 2086, 3278, 3353, 4172, 5269, 6556, 6706, 10538, 11473, 13412, 21076, 22946, 36883, 45892, 71371, 73766, 142742, 147532, 285484, 499597, 785081, 999194, 1570162, 1998388, 3140324, 5495567, 10991134, 21982268]

約数ペア:

[(1, 21982268), (2, 10991134), (4, 5495567), (7, 3140324), (11, 1998388), (14, 1570162), (22, 999194), (28, 785081), (44, 499597), (77, 285484), (149, 147532), (154, 142742), (298, 73766), (308, 71371), (479, 45892), (596, 36883), (958, 22946), (1043, 21076), (1639, 13412), (1916, 11473), (2086, 10538), (3278, 6706), (3353, 6556), (4172, 5269)]