19845189

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1$

素因数の和:267

約数の個数: 64

約数和(自身を含む): 37255680

約数和(自身を除く): 17410491

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 41, 63, 91, 117, 123, 189, 197, 273, 287, 351, 369, 533, 591, 819, 861, 1107, 1379, 1599, 1773, 2457, 2561, 2583, 3731, 4137, 4797, 5319, 7683, 7749, 8077, 11193, 12411, 14391, 17927, 23049, 24231, 33579, 37233, 53781, 56539, 69147, 72693, 100737, 105001, 161343, 169617, 218079, 315003, 484029, 508851, 735007, 945009, 1526553, 2205021, 2835027, 6615063, 19845189]

約数ペア:

[(1, 19845189), (3, 6615063), (7, 2835027), (9, 2205021), (13, 1526553), (21, 945009), (27, 735007), (39, 508851), (41, 484029), (63, 315003), (91, 218079), (117, 169617), (123, 161343), (189, 105001), (197, 100737), (273, 72693), (287, 69147), (351, 56539), (369, 53781), (533, 37233), (591, 33579), (819, 24231), (861, 23049), (1107, 17927), (1379, 14391), (1599, 12411), (1773, 11193), (2457, 8077), (2561, 7749), (2583, 7683), (3731, 5319), (4137, 4797)]