18309844

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{271}}^1$

素因数の和:428

約数の個数: 48

約数和(自身を含む): 38993920

約数和(自身を除く): 20684076

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 127, 133, 254, 266, 271, 508, 532, 542, 889, 1084, 1778, 1897, 2413, 3556, 3794, 4826, 5149, 7588, 9652, 10298, 16891, 20596, 33782, 34417, 36043, 67564, 68834, 72086, 137668, 144172, 240919, 481838, 653923, 963676, 1307846, 2615692, 4577461, 9154922, 18309844]

約数ペア:

[(1, 18309844), (2, 9154922), (4, 4577461), (7, 2615692), (14, 1307846), (19, 963676), (28, 653923), (38, 481838), (76, 240919), (127, 144172), (133, 137668), (254, 72086), (266, 68834), (271, 67564), (508, 36043), (532, 34417), (542, 33782), (889, 20596), (1084, 16891), (1778, 10298), (1897, 9652), (2413, 7588), (3556, 5149), (3794, 4826)]