1851759

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:69

約数の個数: 72

約数和(自身を含む): 3734640

約数和(自身を除く): 1882881

約数列:

[1, 3, 7, 9, 13, 17, 19, 21, 39, 49, 51, 57, 63, 91, 117, 119, 133, 147, 153, 171, 221, 247, 273, 323, 357, 399, 441, 637, 663, 741, 819, 833, 931, 969, 1071, 1197, 1547, 1729, 1911, 1989, 2223, 2261, 2499, 2793, 2907, 4199, 4641, 5187, 5733, 6783, 7497, 8379, 10829, 12103, 12597, 13923, 15561, 15827, 20349, 29393, 32487, 36309, 37791, 47481, 88179, 97461, 108927, 142443, 205751, 264537, 617253, 1851759]

約数ペア:

[(1, 1851759), (3, 617253), (7, 264537), (9, 205751), (13, 142443), (17, 108927), (19, 97461), (21, 88179), (39, 47481), (49, 37791), (51, 36309), (57, 32487), (63, 29393), (91, 20349), (117, 15827), (119, 15561), (133, 13923), (147, 12597), (153, 12103), (171, 10829), (221, 8379), (247, 7497), (273, 6783), (323, 5733), (357, 5187), (399, 4641), (441, 4199), (637, 2907), (663, 2793), (741, 2499), (819, 2261), (833, 2223), (931, 1989), (969, 1911), (1071, 1729), (1197, 1547)]