21807984

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{401}}^1$

素因数の和:526

約数の個数: 80

約数和(自身を含む): 62210304

約数和(自身を除く): 40402320

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 33, 44, 48, 66, 88, 103, 132, 176, 206, 264, 309, 401, 412, 528, 618, 802, 824, 1133, 1203, 1236, 1604, 1648, 2266, 2406, 2472, 3208, 3399, 4411, 4532, 4812, 4944, 6416, 6798, 8822, 9064, 9624, 13233, 13596, 17644, 18128, 19248, 26466, 27192, 35288, 41303, 52932, 54384, 70576, 82606, 105864, 123909, 165212, 211728, 247818, 330424, 454333, 495636, 660848, 908666, 991272, 1362999, 1817332, 1982544, 2725998, 3634664, 5451996, 7269328, 10903992, 21807984]

約数ペア:

[(1, 21807984), (2, 10903992), (3, 7269328), (4, 5451996), (6, 3634664), (8, 2725998), (11, 1982544), (12, 1817332), (16, 1362999), (22, 991272), (24, 908666), (33, 660848), (44, 495636), (48, 454333), (66, 330424), (88, 247818), (103, 211728), (132, 165212), (176, 123909), (206, 105864), (264, 82606), (309, 70576), (401, 54384), (412, 52932), (528, 41303), (618, 35288), (802, 27192), (824, 26466), (1133, 19248), (1203, 18128), (1236, 17644), (1604, 13596), (1648, 13233), (2266, 9624), (2406, 9064), (2472, 8822), (3208, 6798), (3399, 6416), (4411, 4944), (4532, 4812)]