820199289

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{25247}}^1$

素因数の和:25294

約数の個数: 48

約数和(自身を含む): 1450649088

約数和(自身を除く): 630449799

約数列:

[1, 3, 7, 13, 17, 21, 39, 49, 51, 91, 119, 147, 221, 273, 357, 637, 663, 833, 1547, 1911, 2499, 4641, 10829, 25247, 32487, 75741, 176729, 328211, 429199, 530187, 984633, 1237103, 1287597, 2297477, 3004393, 3711309, 5579587, 6892431, 9013179, 16082339, 16738761, 21030751, 39057109, 48247017, 63092253, 117171327, 273399763, 820199289]

約数ペア:

[(1, 820199289), (3, 273399763), (7, 117171327), (13, 63092253), (17, 48247017), (21, 39057109), (39, 21030751), (49, 16738761), (51, 16082339), (91, 9013179), (119, 6892431), (147, 5579587), (221, 3711309), (273, 3004393), (357, 2297477), (637, 1287597), (663, 1237103), (833, 984633), (1547, 530187), (1911, 429199), (2499, 328211), (4641, 176729), (10829, 75741), (25247, 32487)]