18944744

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{491}}^1$

素因数の和:570

約数の個数: 64

約数和(自身を含む): 44634240

約数和(自身を除く): 25689496

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 53, 56, 91, 104, 106, 182, 212, 364, 371, 424, 491, 689, 728, 742, 982, 1378, 1484, 1964, 2756, 2968, 3437, 3928, 4823, 5512, 6383, 6874, 9646, 12766, 13748, 19292, 25532, 26023, 27496, 38584, 44681, 51064, 52046, 89362, 104092, 178724, 182161, 208184, 338299, 357448, 364322, 676598, 728644, 1353196, 1457288, 2368093, 2706392, 4736186, 9472372, 18944744]

約数ペア:

[(1, 18944744), (2, 9472372), (4, 4736186), (7, 2706392), (8, 2368093), (13, 1457288), (14, 1353196), (26, 728644), (28, 676598), (52, 364322), (53, 357448), (56, 338299), (91, 208184), (104, 182161), (106, 178724), (182, 104092), (212, 89362), (364, 52046), (371, 51064), (424, 44681), (491, 38584), (689, 27496), (728, 26023), (742, 25532), (982, 19292), (1378, 13748), (1484, 12766), (1964, 9646), (2756, 6874), (2968, 6383), (3437, 5512), (3928, 4823)]