21856554044

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1\times {\mathrm{563}}^1$

素因数の和:891

約数の個数: 96

約数和(自身を含む): 42899915520

約数和(自身を除く): 21043361476

約数列:

[1, 2, 4, 13, 26, 41, 52, 82, 131, 139, 164, 262, 278, 524, 533, 556, 563, 1066, 1126, 1703, 1807, 2132, 2252, 3406, 3614, 5371, 5699, 6812, 7228, 7319, 10742, 11398, 14638, 18209, 21484, 22796, 23083, 29276, 36418, 46166, 69823, 72836, 73753, 74087, 78257, 92332, 139646, 147506, 148174, 156514, 236717, 279292, 295012, 296348, 300079, 313028, 473434, 600158, 746569, 946868, 958789, 1017341, 1200316, 1493138, 1917578, 2034682, 2986276, 3023873, 3208537, 3835156, 4069364, 6047746, 6417074, 9705397, 10251667, 12095492, 12834148, 19410794, 20503334, 38821588, 39310349, 41006668, 41710981, 78620698, 83421962, 133271671, 157241396, 166843924, 266543342, 420318347, 533086684, 840636694, 1681273388, 5464138511, 10928277022, 21856554044]

約数ペア:

[(1, 21856554044), (2, 10928277022), (4, 5464138511), (13, 1681273388), (26, 840636694), (41, 533086684), (52, 420318347), (82, 266543342), (131, 166843924), (139, 157241396), (164, 133271671), (262, 83421962), (278, 78620698), (524, 41710981), (533, 41006668), (556, 39310349), (563, 38821588), (1066, 20503334), (1126, 19410794), (1703, 12834148), (1807, 12095492), (2132, 10251667), (2252, 9705397), (3406, 6417074), (3614, 6047746), (5371, 4069364), (5699, 3835156), (6812, 3208537), (7228, 3023873), (7319, 2986276), (10742, 2034682), (11398, 1917578), (14638, 1493138), (18209, 1200316), (21484, 1017341), (22796, 958789), (23083, 946868), (29276, 746569), (36418, 600158), (46166, 473434), (69823, 313028), (72836, 300079), (73753, 296348), (74087, 295012), (78257, 279292), (92332, 236717), (139646, 156514), (147506, 148174)]