19918374

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{269}}^1$

素因数の和:365

約数の個数: 64

約数和(自身を含む): 47900160

約数和(自身を除く): 27981786

約数列:

[1, 2, 3, 6, 7, 14, 21, 41, 42, 43, 82, 86, 123, 129, 246, 258, 269, 287, 301, 538, 574, 602, 807, 861, 903, 1614, 1722, 1763, 1806, 1883, 3526, 3766, 5289, 5649, 10578, 11029, 11298, 11567, 12341, 22058, 23134, 24682, 33087, 34701, 37023, 66174, 69402, 74046, 77203, 80969, 154406, 161938, 231609, 242907, 463218, 474247, 485814, 948494, 1422741, 2845482, 3319729, 6639458, 9959187, 19918374]

約数ペア:

[(1, 19918374), (2, 9959187), (3, 6639458), (6, 3319729), (7, 2845482), (14, 1422741), (21, 948494), (41, 485814), (42, 474247), (43, 463218), (82, 242907), (86, 231609), (123, 161938), (129, 154406), (246, 80969), (258, 77203), (269, 74046), (287, 69402), (301, 66174), (538, 37023), (574, 34701), (602, 33087), (807, 24682), (861, 23134), (903, 22058), (1614, 12341), (1722, 11567), (1763, 11298), (1806, 11029), (1883, 10578), (3526, 5649), (3766, 5289)]