13438719

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{109}}^1$

素因数の和:244

約数の個数: 48

約数和(自身を含む): 23795200

約数和(自身を除く): 10356481

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 103, 109, 133, 171, 309, 327, 399, 721, 763, 927, 981, 1197, 1957, 2071, 2163, 2289, 5871, 6213, 6489, 6867, 11227, 13699, 14497, 17613, 18639, 33681, 41097, 43491, 78589, 101043, 123291, 130473, 213313, 235767, 639939, 707301, 1493191, 1919817, 4479573, 13438719]

約数ペア:

[(1, 13438719), (3, 4479573), (7, 1919817), (9, 1493191), (19, 707301), (21, 639939), (57, 235767), (63, 213313), (103, 130473), (109, 123291), (133, 101043), (171, 78589), (309, 43491), (327, 41097), (399, 33681), (721, 18639), (763, 17613), (927, 14497), (981, 13699), (1197, 11227), (1957, 6867), (2071, 6489), (2163, 6213), (2289, 5871)]