19371807

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1$

素因数の和:173

約数の個数: 72

約数和(自身を含む): 36516480

約数和(自身を除く): 17144673

約数列:

[1, 3, 7, 9, 13, 21, 31, 39, 49, 63, 91, 93, 109, 117, 147, 217, 273, 279, 327, 403, 441, 637, 651, 763, 819, 981, 1209, 1417, 1519, 1911, 1953, 2289, 2821, 3379, 3627, 4251, 4557, 5341, 5733, 6867, 8463, 9919, 10137, 12753, 13671, 16023, 19747, 23653, 25389, 29757, 30411, 43927, 48069, 59241, 69433, 70959, 89271, 131781, 165571, 177723, 208299, 212877, 307489, 395343, 496713, 624897, 922467, 1490139, 2152423, 2767401, 6457269, 19371807]

約数ペア:

[(1, 19371807), (3, 6457269), (7, 2767401), (9, 2152423), (13, 1490139), (21, 922467), (31, 624897), (39, 496713), (49, 395343), (63, 307489), (91, 212877), (93, 208299), (109, 177723), (117, 165571), (147, 131781), (217, 89271), (273, 70959), (279, 69433), (327, 59241), (403, 48069), (441, 43927), (637, 30411), (651, 29757), (763, 25389), (819, 23653), (981, 19747), (1209, 16023), (1417, 13671), (1519, 12753), (1911, 10137), (1953, 9919), (2289, 8463), (2821, 6867), (3379, 5733), (3627, 5341), (4251, 4557)]