21986999991

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{20627}}^1$

素因数の和:20781

約数の個数: 64

約数和(自身を含む): 36872962560

約数和(自身を除く): 14885962569

約数列:

[1, 3, 9, 11, 27, 33, 37, 97, 99, 111, 291, 297, 333, 407, 873, 999, 1067, 1221, 2619, 3201, 3589, 3663, 9603, 10767, 10989, 20627, 28809, 32301, 39479, 61881, 96903, 118437, 185643, 226897, 355311, 556929, 680691, 763199, 1065933, 2000819, 2042073, 2289597, 6002457, 6126219, 6868791, 8395189, 18007371, 20606373, 22009009, 25185567, 54022113, 66027027, 74030303, 75556701, 198081081, 222090909, 226670103, 594243243, 666272727, 814333333, 1998818181, 2442999999, 7328999997, 21986999991]

約数ペア:

[(1, 21986999991), (3, 7328999997), (9, 2442999999), (11, 1998818181), (27, 814333333), (33, 666272727), (37, 594243243), (97, 226670103), (99, 222090909), (111, 198081081), (291, 75556701), (297, 74030303), (333, 66027027), (407, 54022113), (873, 25185567), (999, 22009009), (1067, 20606373), (1221, 18007371), (2619, 8395189), (3201, 6868791), (3589, 6126219), (3663, 6002457), (9603, 2289597), (10767, 2042073), (10989, 2000819), (20627, 1065933), (28809, 763199), (32301, 680691), (39479, 556929), (61881, 355311), (96903, 226897), (118437, 185643)]