19138192

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{991}}^1$

素因数の和:1087

約数の個数: 40

約数和(自身を含む): 39854592

約数和(自身を除く): 20716400

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 71, 136, 142, 272, 284, 568, 991, 1136, 1207, 1982, 2414, 3964, 4828, 7928, 9656, 15856, 16847, 19312, 33694, 67388, 70361, 134776, 140722, 269552, 281444, 562888, 1125776, 1196137, 2392274, 4784548, 9569096, 19138192]

約数ペア:

[(1, 19138192), (2, 9569096), (4, 4784548), (8, 2392274), (16, 1196137), (17, 1125776), (34, 562888), (68, 281444), (71, 269552), (136, 140722), (142, 134776), (272, 70361), (284, 67388), (568, 33694), (991, 19312), (1136, 16847), (1207, 15856), (1982, 9656), (2414, 7928), (3964, 4828)]