21901820545

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{307}}^1\times {\mathrm{1861}}^1$

素因数の和:2242

約数の個数: 64

約数和(自身を含む): 31216534272

約数和(自身を除く): 9314713727

約数列:

[1, 5, 11, 17, 41, 55, 85, 187, 205, 307, 451, 697, 935, 1535, 1861, 2255, 3377, 3485, 5219, 7667, 9305, 12587, 16885, 20471, 26095, 31637, 38335, 57409, 62935, 76301, 102355, 138457, 158185, 213979, 287045, 348007, 381505, 571327, 692285, 839311, 1069895, 1297117, 1740035, 2353769, 2856635, 4196555, 6284597, 6485585, 9712559, 11768845, 14268287, 23424407, 31422985, 48562795, 71341435, 106838149, 117122035, 257668477, 398214919, 534190745, 1288342385, 1991074595, 4380364109, 21901820545]

約数ペア:

[(1, 21901820545), (5, 4380364109), (11, 1991074595), (17, 1288342385), (41, 534190745), (55, 398214919), (85, 257668477), (187, 117122035), (205, 106838149), (307, 71341435), (451, 48562795), (697, 31422985), (935, 23424407), (1535, 14268287), (1861, 11768845), (2255, 9712559), (3377, 6485585), (3485, 6284597), (5219, 4196555), (7667, 2856635), (9305, 2353769), (12587, 1740035), (16885, 1297117), (20471, 1069895), (26095, 839311), (31637, 692285), (38335, 571327), (57409, 381505), (62935, 348007), (76301, 287045), (102355, 213979), (138457, 158185)]