21438802

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{431}}^1$

素因数の和:487

約数の個数: 64

約数和(自身を含む): 44789760

約数和(自身を除く): 23350958

約数列:

[1, 2, 7, 11, 14, 17, 19, 22, 34, 38, 77, 119, 133, 154, 187, 209, 238, 266, 323, 374, 418, 431, 646, 862, 1309, 1463, 2261, 2618, 2926, 3017, 3553, 4522, 4741, 6034, 7106, 7327, 8189, 9482, 14654, 16378, 24871, 33187, 49742, 51289, 57323, 66374, 80597, 90079, 102578, 114646, 139213, 161194, 180158, 278426, 564179, 630553, 974491, 1128358, 1261106, 1531343, 1948982, 3062686, 10719401, 21438802]

約数ペア:

[(1, 21438802), (2, 10719401), (7, 3062686), (11, 1948982), (14, 1531343), (17, 1261106), (19, 1128358), (22, 974491), (34, 630553), (38, 564179), (77, 278426), (119, 180158), (133, 161194), (154, 139213), (187, 114646), (209, 102578), (238, 90079), (266, 80597), (323, 66374), (374, 57323), (418, 51289), (431, 49742), (646, 33187), (862, 24871), (1309, 16378), (1463, 14654), (2261, 9482), (2618, 8189), (2926, 7327), (3017, 7106), (3553, 6034), (4522, 4741)]