19413459

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:153

約数の個数: 64

約数和(自身を含む): 33868800

約数和(自身を除く): 14455341

約数列:

[1, 3, 9, 13, 19, 27, 39, 41, 57, 71, 117, 123, 171, 213, 247, 351, 369, 513, 533, 639, 741, 779, 923, 1107, 1349, 1599, 1917, 2223, 2337, 2769, 2911, 4047, 4797, 6669, 7011, 8307, 8733, 10127, 12141, 14391, 17537, 21033, 24921, 26199, 30381, 36423, 37843, 52611, 55309, 78597, 91143, 113529, 157833, 165927, 273429, 340587, 473499, 497781, 719017, 1021761, 1493343, 2157051, 6471153, 19413459]

約数ペア:

[(1, 19413459), (3, 6471153), (9, 2157051), (13, 1493343), (19, 1021761), (27, 719017), (39, 497781), (41, 473499), (57, 340587), (71, 273429), (117, 165927), (123, 157833), (171, 113529), (213, 91143), (247, 78597), (351, 55309), (369, 52611), (513, 37843), (533, 36423), (639, 30381), (741, 26199), (779, 24921), (923, 21033), (1107, 17537), (1349, 14391), (1599, 12141), (1917, 10127), (2223, 8733), (2337, 8307), (2769, 7011), (2911, 6669), (4047, 4797)]