21913038

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{1999}}^1$

素因数の和:2046

約数の個数: 64

約数和(自身を含む): 57600000

約数和(自身を除く): 35686962

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 29, 42, 54, 58, 63, 87, 126, 174, 189, 203, 261, 378, 406, 522, 609, 783, 1218, 1566, 1827, 1999, 3654, 3998, 5481, 5997, 10962, 11994, 13993, 17991, 27986, 35982, 41979, 53973, 57971, 83958, 107946, 115942, 125937, 173913, 251874, 347826, 377811, 405797, 521739, 755622, 811594, 1043478, 1217391, 1565217, 2434782, 3130434, 3652173, 7304346, 10956519, 21913038]

約数ペア:

[(1, 21913038), (2, 10956519), (3, 7304346), (6, 3652173), (7, 3130434), (9, 2434782), (14, 1565217), (18, 1217391), (21, 1043478), (27, 811594), (29, 755622), (42, 521739), (54, 405797), (58, 377811), (63, 347826), (87, 251874), (126, 173913), (174, 125937), (189, 115942), (203, 107946), (261, 83958), (378, 57971), (406, 53973), (522, 41979), (609, 35982), (783, 27986), (1218, 17991), (1566, 13993), (1827, 11994), (1999, 10962), (3654, 5997), (3998, 5481)]